{"title":"CONFORTO Multi-Zone Heat Pump | Installation in Montreal, Laval, Longueuil, South Shore and North Shore","description":null,"products":[{"product_id":"thermopompe-2-zones-conforto-mhmz-18000-btu-r410a","title":"2-Zone Heat Pump CONFORTO MHMZ | 18,000 BTU - R410A","description":"\u003ch2\u003eTwo small rooms, two identical heads and a condenser sized to match\u003c\/h2\u003e\n\u003cp\u003eNot every home needs a large system. Two bedrooms that overheat in summer, a bedroom and a home office, the two closed rooms of a condo: for these modest needs, the right unit is the one that matches the actual load, not the biggest one. The \u003cstrong\u003e2-Zone Heat Pump CONFORTO MHMZ | 18,000 BTU - R410A\u003c\/strong\u003e feeds two \u003cstrong\u003ewall heads\u003c\/strong\u003e from a single \u003cstrong\u003eMHMZ218DACFC condenser\u003c\/strong\u003e, compact and sized for two small rooms.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e1.5-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e2 zones\u003c\/strong\u003e, which is its maximum of 2. The wall head intended for it is the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, installed in each of the two rooms. Its certified ratings are \u003cstrong\u003e22.0 SEER2\u003c\/strong\u003e, \u003cstrong\u003e12.5 EER2\u003c\/strong\u003e and \u003cstrong\u003e9.8 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 4480247\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$1,800 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe right size for two small rooms\u003c\/h3\u003e\n\u003cp\u003eA heat pump that is too large for its room heats or cools quickly, stops, then starts again. These short cycles wear out the unit, leave the air humid in summer and create temperature swings. A condenser sized to the rooms instead runs for long periods at low speed, which gives more even comfort and drier air.\u003c\/p\u003e\n\u003cp\u003eThis size therefore targets two modest rooms: two bedrooms in a \u003cstrong\u003e4 ½\u003c\/strong\u003e or a \u003cstrong\u003e5 ½\u003c\/strong\u003e, a bedroom and an office, a basement bedroom and a workroom. In a well-insulated home, the two heads cover most of the year in these rooms. In an older house, the \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e stay in place for deep cold. The load calculation confirms the choice during the visit.\u003c\/p\u003e\n\u003cp\u003eWe are often asked whether a single head, mounted in the hallway between the two rooms, would do the job. With the door open, a little air circulates; with the door closed to sleep or work, almost nothing gets through. One head per room is the only way to guarantee each its own temperature, and that is exactly what a two-zone condenser allows.\u003c\/p\u003e\n\u003ch3\u003eTwo MHWAL09DACFC heads, two set points\u003c\/h3\u003e\n\u003cp\u003eBoth rooms get the same head, the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, each with its own remote and set point. You can keep the office comfortable during the day and the bedroom cool at night, or shut off an unoccupied zone entirely without touching the other.\u003c\/p\u003e\n\u003cp\u003eThe two heads share the condenser's capacity: when both call at full demand, it is split between them; when only one room is occupied, it benefits from the available capacity. With 2 zones out of a maximum of 2, every connection is used. If a third room needs to be equipped one day, another unit will be required; we tell you before signing, so the choice is made with full knowledge.\u003c\/p\u003e\n\u003ch3\u003eSleep, the first argument\u003c\/h3\u003e\n\u003cp\u003eIn a bedroom, it is the night that judges a system. The \u003cstrong\u003einverter compressor\u003c\/strong\u003e slows down as soon as the set point is reached and holds the temperature without abrupt starts. In summer, extended low-speed operation removes moisture from the air, which lets you sleep cool without setting the set point too low. For cooling, the system is built around a nominal size of \u003cstrong\u003e18,000 BTU\/h\u003c\/strong\u003e shared between the two rooms.\u003c\/p\u003e\n\u003cp\u003eCompared with a window air conditioner, the difference is clear: the condenser and its compressor are outside, the window stays free and locks, and only a flow of air remains in the room. We mount each head high on the wall so the air sweeps the room without blowing directly on the bed.\u003c\/p\u003e\n\u003ch3\u003eIn the cold, more capacity than the nominal size\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e15,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.50\u003c\/strong\u003e, and \u003cstrong\u003e19,700 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 1.90\u003c\/strong\u003e. It also publishes a maximum capacity of \u003cstrong\u003e20,000 BTU\/h at -15 °C\u003c\/strong\u003e, with a \u003cstrong\u003eCOP of 1.83\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eThe figure at -15 °C exceeds the 18,000 BTU nominal size. This is not an error: in cold weather, the inverter compressor can run faster than its reference speed to offset the home's heat losses. A COP of 1.90 means that at that temperature, each kilowatt-hour consumed returns 1.90 kilowatt-hours of heat, where a baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605810\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat and defrost\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. We therefore recommend keeping the existing baseboards, set slightly below the heads' set point: they stay off most of the time and only take over during extreme cold. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes. The heads then stop blowing warm air and a cloud of vapour rises from the outdoor unit. This is normal.\u003c\/p\u003e\n\u003ch3\u003eInverter technology and R-410A refrigerant\u003c\/h3\u003e\n\u003cp\u003eThe condenser meters the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each head according to its demand and adjusts the compressor speed accordingly. The two heads always work in the same mode, heating or cooling, as on any multi-zone system of this type. For two neighbouring rooms living through the same season, this rule goes unnoticed.\u003c\/p\u003e\n\u003ch3\u003eThe 22.0 SEER2, 12.5 EER2 and 9.8 HSPF2 ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e: cooling efficiency over a whole summer.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e: cooling at full load, in hot weather.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e: heating efficiency over the whole cold season, the rating that weighs most on the bill in Quebec.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP\u003c\/strong\u003e: the ratio between heat delivered and electricity consumed at a specific temperature, here 2.50 at -8 °C and 1.90 at -15 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe $1,800 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$1,800\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eAn installation in a condo or a house\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003cp\u003eIn a condo, the condenser's location and drilling through exterior walls often fall under the syndicate's authority; check the declaration of co-ownership and obtain approval before the work. The compact condenser is installed on a balcony, on a wall bracket or on a stand, always above the snow line and sheltered from snow sliding off the roof.\u003c\/p\u003e\n\u003cp\u003eEach head gets its own \u003cstrong\u003erefrigerant line set\u003c\/strong\u003e back to the condenser, protected by a line cover outdoors, and its own sloped condensate \u003cstrong\u003edrain\u003c\/strong\u003e. The condenser is connected to a \u003cstrong\u003ededicated circuit\u003c\/strong\u003e, checked at the panel during the visit. Commissioning includes the vacuum, the leak test, a check of both zones and setup of the remotes with you.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of both heads every two weeks in season; they come out by hand, without tools. Keep the condenser clear of snow, ice and leaves, without covering it in winter: it heats in January too. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 2-Zone Heat Pump CONFORTO MHMZ | 18,000 BTU - R410A. We assess your two rooms and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797750317348,"sku":"MHMZ218DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_2_ZONES_1_5_TONNES_18000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082560"},{"product_id":"thermopompe-2-zones-conforto-mhmz-27000-btu-r410a","title":"2-Zone Heat Pump CONFORTO MHMZ | 27,000 BTU - R410A","description":"\u003ch2\u003eThe living room and the bedroom, heated and cooled with high seasonal ratings\u003c\/h2\u003e\n\u003cp\u003eWhen you replace baseboards with a heat pump, what counts is the heating bill for the whole season, not the performance on a single day. The \u003cstrong\u003e2-Zone Heat Pump CONFORTO MHMZ | 27,000 BTU - R410A\u003c\/strong\u003e brings a living space and a bedroom together on a single \u003cstrong\u003eMHMZ327DACFC condenser\u003c\/strong\u003e, with two \u003cstrong\u003ewall heads\u003c\/strong\u003e of different sizes and high seasonal ratings in both heating and cooling.\u003c\/p\u003e\n\u003cp\u003eThe condenser serves \u003cstrong\u003e2 zones\u003c\/strong\u003e here and accepts up to \u003cstrong\u003e3\u003c\/strong\u003e at most. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e23.0 SEER2\u003c\/strong\u003e, \u003cstrong\u003e12.5 EER2\u003c\/strong\u003e and \u003cstrong\u003e10.6 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495138\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$3,192 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eTwo rooms, two heads of different sizes\u003c\/h3\u003e\n\u003cp\u003eA living space and a bedroom do not have the same needs. The living room, often open to the kitchen, has more floor area, more windows and more occupants; the bedroom is small, closed and used mostly at night. The two intended heads follow that difference. The \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e, the larger, goes in the living space; the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the smaller, in the bedroom.\u003c\/p\u003e\n\u003cp\u003eThis uneven split avoids two common mistakes: a head too small for the living room, which strains without ever catching up to the set point, and a head too large for the bedroom, which constantly starts and stops and removes moisture poorly. The condenser then distributes its capacity according to each head's actual demand. The combination is confirmed during the visit, after the load calculation.\u003c\/p\u003e\n\u003ch3\u003eWhat 10.6 HSPF2 and 23.0 SEER2 mean\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e measures heating efficiency over a whole cold season, taking mild days as well as cold days into account. The higher it is, the less each unit of heat costs in electricity over the whole winter. At 10.6, it is the rating to look at first for a Quebec home, where heating weighs much more than cooling.\u003c\/p\u003e\n\u003cp\u003eWhy a seasonal rating rather than a single figure: a heat pump spends most of the winter at moderate temperatures, in October, November, March or April, when it runs at reduced speed. A high seasonal rating reflects precisely that part-load efficiency, the kind that repeats day after day. The certified deep-cold points, presented below, complete the picture for the weeks of January and February.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e does the same for summer: it measures cooling efficiency over the whole warm season. At 23.0, cooling the living room and the bedroom weighs little on the bill. The \u003cstrong\u003eEER2\u003c\/strong\u003e of 12.5 measures cooling at full load during a heat wave. Finally, the \u003cstrong\u003eCOP\u003c\/strong\u003e gives the efficiency at a specific temperature.\u003c\/p\u003e\n\u003ch3\u003eFor which homes\u003c\/h3\u003e\n\u003cp\u003eThis size suits a condo whose living room and main bedroom are separate, the ground floor of a bungalow, or a semi-detached where the living space and one bedroom carry most of the comfort. In a well-insulated home, the two heads can become the main heat source for these rooms. In an older house, the \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e stay in place for deep cold, and we calculate the share the heat pump can take on.\u003c\/p\u003e\n\u003ch3\u003eWinter according to the certificate\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e26,600 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.30\u003c\/strong\u003e, and \u003cstrong\u003e25,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 1.80\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e25,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eAt -8 °C, the condenser keeps 99% of its 27,000 BTU nominal size, and it retains most of it at -15 °C. A COP of 2.30 means that at -8 °C, each kilowatt-hour consumed returns 2.30 kilowatt-hours of heat, where a baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605813\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat and defrost\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. We therefore recommend keeping the existing baseboards as backup, set slightly below the heads' set point: they stay off most of the time and only serve during extreme cold. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes; the heads then stop blowing warm air and a cloud of vapour rises from the outdoor unit. This is normal.\u003c\/p\u003e\n\u003ch3\u003eThe inverter compressor, room by room\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einverter compressor\u003c\/strong\u003e varies its speed instead of starting and stopping. It meters the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each head according to its demand: when the bedroom reaches its set point, it slows down while the living room keeps going. The two heads share the condenser's capacity when they call together.\u003c\/p\u003e\n\u003cp\u003eAs on any multi-zone system of this type, the two heads work in the same mode, heating or cooling. A living space and a bedroom live through the same season; this rule goes unnoticed.\u003c\/p\u003e\n\u003ch3\u003eSummer in the living room and the bedroom\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e27,000 BTU\/h\u003c\/strong\u003e, distributed between the two rooms. In the afternoon, the large living-room head does most of the work; at night, it is the small bedroom head. Extended low-speed operation removes moisture from the air, which keeps both rooms comfortable without an overly low set point. Each head also offers a dehumidification mode for muggy days.\u003c\/p\u003e\n\u003ch3\u003eThe $3,192 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$3,192\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstallation and maintenance\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eVisit and load calculation\u003c\/strong\u003e: we measure both rooms and note the windows and insulation.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCondenser\u003c\/strong\u003e: above the snow line, on a wall bracket or a stand, sheltered from snow sliding off the roof.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant lines\u003c\/strong\u003e: one set per head back to the condenser, protected by a line cover outdoors.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrains\u003c\/strong\u003e: one sloped condensate drain per head.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eElectrical\u003c\/strong\u003e: a \u003cstrong\u003ededicated circuit\u003c\/strong\u003e for the condenser, checked at the panel during the visit.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommissioning\u003c\/strong\u003e: vacuum, leak test, check of both zones and setup of the remotes with you.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eA third zone possible later\u003c\/h3\u003e\n\u003cp\u003eWith 2 zones out of a maximum of 3, the condenser keeps one connection free. A child's bedroom, an office or a basement room could be added one day. Before any addition, we check that the remaining capacity is enough for the new room without shortchanging the first two, and that the combination follows the manufacturer's rules.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of both heads every two weeks in season; the living-room one, near the kitchen, gets dirty faster. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 2-Zone Heat Pump CONFORTO MHMZ | 27,000 BTU - R410A. We assess your living room and your bedroom and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797750382884,"sku":"MHMZ327DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_2_ZONES_27000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082560"},{"product_id":"thermopompe-3-zones-conforto-mhmz-27000-btu-r410a","title":"3-Zone Heat Pump CONFORTO MHMZ | 27,000 BTU - R410A","description":"\u003ch2\u003eThe living room and two bedrooms on a single condenser: a whole small home in three zones\u003c\/h2\u003e\n\u003cp\u003eIn a condo or a small house, three rooms account for most of daily life: the living room, the main bedroom and a second bedroom or an office. The \u003cstrong\u003e3-Zone Heat Pump CONFORTO MHMZ | 27,000 BTU - R410A\u003c\/strong\u003e equips each one with a \u003cstrong\u003ewall head\u003c\/strong\u003e and connects them all to a single \u003cstrong\u003eMHMZ327DACFC condenser\u003c\/strong\u003e. One unit outside, three set points inside.\u003c\/p\u003e\n\u003cp\u003eThe condenser serves \u003cstrong\u003e3 zones\u003c\/strong\u003e here, which is its maximum of 3. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e23.0 SEER2\u003c\/strong\u003e, \u003cstrong\u003e12.5 EER2\u003c\/strong\u003e and \u003cstrong\u003e10.6 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495138\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$3,192 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA complete home, three zones\u003c\/h3\u003e\n\u003cp\u003eThis size targets homes where three rooms carry all the comfort: a condo \u003cstrong\u003e5 ½\u003c\/strong\u003e, the ground floor of a bungalow with a living room and two bedrooms, or a small house whose kitchen is open to the living room. Each closed room gets its own head, and the kitchen benefits from the living-room head.\u003c\/p\u003e\n\u003cp\u003eThe result depends on the insulation. In a recent or renovated home, the three heads can become the main heat source. In an older house, we calculate the share the heat pump can take on in each room and the share left to the \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e, then present it to you before signing.\u003c\/p\u003e\n\u003ch3\u003eThe three heads and where they go\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e, the larger of the two intended heads, goes in the living room: it is the largest and most glazed room. The bedrooms get the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, smaller and well suited to a closed room used mostly at night. The exact combination is confirmed after the load calculation.\u003c\/p\u003e\n\u003cp\u003eIn a small home, the location of each head is decided carefully. In the living room, we place it so it blows toward the open kitchen without aiming straight at the sofa, and away from the stove, whose heat would skew the temperature reading. In a bedroom, the head goes high on the wall, preferably on an exterior wall to shorten the lines, with airflow that sweeps the room without falling on the bed. We show you each location before drilling.\u003c\/p\u003e\n\u003cp\u003eThe three heads share the condenser's capacity. With 3 zones out of a maximum of 3, every connection is used: the system covers the home as it is, with no room for a fourth space. If a basement is to be finished later, we point it out during the visit so the size is chosen with full knowledge.\u003c\/p\u003e\n\u003ch3\u003eA typical day, zone by zone\u003c\/h3\u003e\n\u003cp\u003eIn the morning, the bedrooms ask for a little heat on waking while the living room stays at its daytime set point. During the day, the bedrooms are empty: their set point can stay a little lower, and the condenser concentrates its capacity on the living room. In the evening, demand moves back to the bedrooms. The \u003cstrong\u003einverter compressor\u003c\/strong\u003e follows this movement without abrupt starts, metering the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each head according to its demand.\u003c\/p\u003e\n\u003cp\u003eA single rule frames this operation: the three heads work in the same mode, heating or cooling, as on any multi-zone system of this type. In a home that lives through the same season from one room to the next, it goes unnoticed.\u003c\/p\u003e\n\u003ch3\u003eWhat the certificate shows for winter\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e26,600 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.30\u003c\/strong\u003e, and \u003cstrong\u003e25,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 1.80\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e25,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eAt -15 °C, the three heads therefore share 93% of the 27,000 BTU nominal size. A COP of 1.80 means that at that temperature, each kilowatt-hour consumed returns 1.80 kilowatt-hours of heat, where a baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605813\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eThe baseboards, kept in reserve\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. We therefore recommend keeping the existing baseboards, set slightly below the heads' set point: they stay off for most of the winter and take over during extreme cold. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes. The heads then stop blowing warm air and a cloud of vapour rises from the outdoor unit; this is normal.\u003c\/p\u003e\n\u003ch3\u003eThis system's seasonal ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e10.6 HSPF2\u003c\/strong\u003e: heating efficiency over the whole cold season. In Quebec, it is the rating that weighs most on the bill.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e23.0 SEER2\u003c\/strong\u003e: cooling efficiency over a whole summer.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12.5 EER2\u003c\/strong\u003e: cooling at full load, during a heat wave.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP\u003c\/strong\u003e: the ratio between heat delivered and electricity consumed at a specific temperature, here 2.30 at -8 °C and 1.80 at -15 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCooling and humidity\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e27,000 BTU\/h\u003c\/strong\u003e, shared among the three rooms. The bedrooms are set for the night, the living room for the day, and an empty room can be shut off. The compressor runs for long periods at low speed, which removes moisture from the air and keeps the home comfortable without an overly low set point. Each head also offers a dehumidification mode for muggy days.\u003c\/p\u003e\n\u003ch3\u003eThe $3,192 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$3,192\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstalling three heads in a small home\u003c\/h2\u003e\n\u003ch3\u003eIn a condo: approval first\u003c\/h3\u003e\n\u003cp\u003eIn a condominium building, the condenser's location and drilling through exterior walls often fall under the syndicate's authority. Check the declaration of co-ownership and obtain the required approval before planning the work. We can provide the model numbers and the planned location to support the request.\u003c\/p\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003cp\u003eAfter the visit and the load calculation, the condenser is installed above the snow line, on a balcony, a wall bracket or a stand, sheltered from snow sliding off the roof. Each head gets its own \u003cstrong\u003erefrigerant line set\u003c\/strong\u003e back to the condenser; the three are grouped in a line cover for a clean run along the wall. Each head also has its own sloped condensate \u003cstrong\u003edrain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe condenser is connected to a \u003cstrong\u003ededicated circuit\u003c\/strong\u003e, checked at the panel during the visit. Commissioning includes the vacuum, the leak test, a check of each zone and setup of the three remotes with you.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of all three heads every two weeks in season; they come out by hand. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 3-Zone Heat Pump CONFORTO MHMZ | 27,000 BTU - R410A. We assess your three rooms and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797760934180,"sku":"MHMZ327DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_3_ZONES_27000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082560"},{"product_id":"thermopompe-2-zones-conforto-mhmz-36000-btu-r410a","title":"2-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A","description":"\u003ch2\u003eThe ground floor and the attic floor, each with its own head, even during heat waves\u003c\/h2\u003e\n\u003cp\u003eA floor finished under the roof is often the most pleasant room in the house in spring and the most uncomfortable in July. The sun heats the roof all day, and heat builds up under the sloped ceilings long after sunset. The \u003cstrong\u003e2-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A\u003c\/strong\u003e gives that floor its own \u003cstrong\u003ewall head\u003c\/strong\u003e, another on the ground floor, and connects them to a single \u003cstrong\u003eMHMZ436DACFC condenser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e3-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e2 zones\u003c\/strong\u003e here and accepts up to \u003cstrong\u003e4\u003c\/strong\u003e at most. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e22.2 SEER2\u003c\/strong\u003e, \u003cstrong\u003e13.6 EER2\u003c\/strong\u003e and \u003cstrong\u003e10.3 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495072\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$3,960 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA floor under the roof, the hardest to cool\u003c\/h3\u003e\n\u003cp\u003eAn attic converted into a main bedroom, a mezzanine turned into an office, the upper floor of a Cape Cod-style house: these spaces share low walls, sloped ceilings and a roof directly overhead. In summer, they take the roof's heat before every other room. In winter, they lose their own through the same roof if the insulation is thin.\u003c\/p\u003e\n\u003cp\u003eA head on the ground floor cannot cool an upper floor: cold air sinks, it does not rise. That is why this system places a head on each level. The ground-floor one serves the living space; the upper one, the bedrooms or the office under the roof. The load calculation takes the roof insulation into account, and we tell you plainly if it limits the result.\u003c\/p\u003e\n\u003cp\u003eHumidity adds to the heat. Under the roof, warm, damp air makes sleep difficult even when the thermometer seems reasonable. By running for long periods at low speed, the upstairs head removes that moisture, and its dehumidification mode helps on muggy days when full cooling is not needed.\u003c\/p\u003e\n\u003ch3\u003eWhat 13.6 EER2, 22.2 SEER2 and 10.3 HSPF2 measure\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e measures cooling efficiency at full load, in hot weather. That is exactly the situation of a floor under the roof in July, when the head runs flat out during the hottest hours. At 13.6, this rating is the system's strong point for heat waves.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2\u003c\/strong\u003e of 22.2 measures cooling efficiency over a whole summer, mild days included. The \u003cstrong\u003eHSPF2\u003c\/strong\u003e of 10.3 does the same for heating over the whole cold season; in Quebec, it is the rating that weighs most on the annual bill. Finally, the \u003cstrong\u003eCOP\u003c\/strong\u003e expresses efficiency at a specific temperature: it is the ratio between heat delivered and electricity consumed.\u003c\/p\u003e\n\u003ch3\u003eTwo zones, two heads to choose\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e, the largest of the three intended heads, usually goes in the ground-floor living space. Upstairs, the choice depends on floor area and exposure: the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e for a main bedroom under the roof, the MHWAL18DACFC if the floor is open and very exposed, the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e for a small office. The load calculation decides.\u003c\/p\u003e\n\u003cp\u003eThe two heads share the condenser's capacity. On a summer afternoon, the upper floor asks for the largest share; on a winter evening, it is often the ground floor. With 2 zones out of a maximum of 4, two connections remain free for rooms added later, after checking the remaining capacity.\u003c\/p\u003e\n\u003ch3\u003ePlacing a head under a sloped ceiling\u003c\/h3\u003e\n\u003cp\u003eUnder the roof, there is often little space at the top of the walls. We install the head on the gable wall or the tallest wall, so it blows along the length of the floor rather than against a slope. It needs enough space above it for the air intake. When the floor is divided into two bedrooms, the head goes in the larger or more exposed one, and we tell you whether the second bedroom will be well served with the door open or deserves its own zone.\u003c\/p\u003e\n\u003ch3\u003eWinter: the full nominal size at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e33,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.40\u003c\/strong\u003e, and \u003cstrong\u003e36,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 1.90\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e36,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eAt -15 °C, the condenser therefore delivers 100% of its nominal size. A COP of 1.90 means that at that temperature, each kilowatt-hour consumed returns 1.90 kilowatt-hours of heat, where an electric baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605816\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat and defrost\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. We therefore recommend keeping the existing \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e, set slightly below the heads' set point. They stay off for most of the winter and only take over during extreme cold. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes: the heads stop blowing warm air and a cloud of vapour rises from the outdoor unit. This is normal.\u003c\/p\u003e\n\u003ch3\u003eThe inverter compressor and R-410A refrigerant\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einverter compressor\u003c\/strong\u003e varies its speed according to the demand of the two heads and meters the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each one. It runs for long periods at moderate speed, which removes moisture from the air in cooling and keeps temperatures steady in heating. For cooling, the system is built around a nominal size of \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e. The two heads always work in the same mode, heating or cooling, as on any multi-zone system of this type.\u003c\/p\u003e\n\u003ch3\u003eThe $3,960 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$3,960\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstallation on two levels\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003cp\u003eThe refrigerant line for the ground-floor head is short. The one for the upper floor runs up the facade in a painted line cover, or goes through the attic or a closet when the house allows it; we show you the route before drilling. Each head gets its own \u003cstrong\u003erefrigerant line set\u003c\/strong\u003e and its own condensate \u003cstrong\u003edrain\u003c\/strong\u003e, sloped toward the outside.\u003c\/p\u003e\n\u003cp\u003eThe condenser is installed above the snow line, on a wall bracket or a stand, away from snow sliding off the roof. It is connected to a \u003cstrong\u003ededicated circuit\u003c\/strong\u003e, checked at the panel during the visit. Commissioning includes the vacuum, the leak test, a check of both zones and setup of the remotes with you.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of both heads every two weeks in season; the upstairs one works hard in summer and deserves particular attention. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 2-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A. We assess both levels and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797761229092,"sku":"MHMZ436DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_2_ZONES_3_TONNES_36000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082560"},{"product_id":"thermopompe-3-zones-conforto-mhmz-36000-btu-r410a","title":"3-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A","description":"\u003ch2\u003eA railroad-style plex unit, heated and cooled from front to back in three zones\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMontreal\u003c\/strong\u003e plex units often share the same layout: a double living room at the front, bedrooms in the middle, the kitchen and dining room at the back, all linked by a long hallway. A single \u003cstrong\u003ewall-mounted heat pump\u003c\/strong\u003e cannot serve such a stretched-out home. The \u003cstrong\u003e3-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A\u003c\/strong\u003e places one head at the front, one in the middle and one at the back, all connected to a single \u003cstrong\u003eMHMZ436DACFC condenser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e3-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e3 zones\u003c\/strong\u003e here and accepts up to \u003cstrong\u003e4\u003c\/strong\u003e at most. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e22.2 SEER2\u003c\/strong\u003e, \u003cstrong\u003e13.6 EER2\u003c\/strong\u003e and \u003cstrong\u003e10.3 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495072\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$3,960 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe railroad layout, a challenge for a single head\u003c\/h3\u003e\n\u003cp\u003eIn a railroad-style unit, air does not travel from one end to the other. A head installed in the living room keeps the front comfortable, but the kitchen, at the end of the hallway, stays cold in winter and hot in summer. The middle bedrooms, often without a street-facing window, have different needs again. Three zones match this natural division: the front, the middle and the back, each with its own set point.\u003c\/p\u003e\n\u003cp\u003eThis size also suits a semi-detached or a row house whose layout stretches back in depth. In every case, the insulation of the exterior walls and the quality of the windows matter as much as the floor area; an old plex does not have the same envelope as a renovated unit, and the load calculation takes that into account.\u003c\/p\u003e\n\u003ch3\u003eThree heads, from front to back\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e, the largest of the three intended heads, usually goes in the double living room, the largest and most glazed room. The \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e suits the kitchen and dining room at the back, and the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e the middle bedroom. The load calculation confirms each choice.\u003c\/p\u003e\n\u003cp\u003eThe three heads share the condenser's capacity. In the evening, the living room and kitchen take the largest share; at night, the bedroom does. With 3 zones out of a maximum of 4, one connection remains free for a second bedroom later, after checking the remaining capacity.\u003c\/p\u003e\n\u003ch3\u003eWhere the condenser goes in a plex\u003c\/h3\u003e\n\u003cp\u003eIn a plex, the condenser is most often installed at the back: on a bracket fixed to the rear facade, on the balcony or on the roof of a shed, always above the snow line. We take into account the snow and ice falling from upper balconies, access for maintenance and the neighbours' windows. In a divided co-ownership, the location and drilling through exterior walls often fall under the syndicate's authority: check the declaration of co-ownership and obtain approval before the work.\u003c\/p\u003e\n\u003ch3\u003eMain heating, even at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e33,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.40\u003c\/strong\u003e, and \u003cstrong\u003e36,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 1.90\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e36,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eAt -8 °C, the published point corresponds to 92% of the nominal size; at -15 °C, the condenser delivers all of it. For a plex unit heated with baseboards, this means the three heads can carry most of the heating through most winters. A COP of 1.90 means that at -15 °C, each kilowatt-hour consumed returns 1.90 kilowatt-hours of heat, where an electric baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605816\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eWhat is left to the baseboards\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. The \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e therefore stay in place, set slightly below the heads' set point: they are off most of the time and take over during extreme cold. They also serve during \u003cstrong\u003edefrost cycles\u003c\/strong\u003e, those few minutes when, in cold, humid weather, the condenser melts the frost off its coil; the heads then stop blowing warm air and a cloud of vapour rises from the outdoor unit.\u003c\/p\u003e\n\u003ch3\u003eWhat happens in the condenser\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einverter compressor\u003c\/strong\u003e does not run on an on-off cycle. It speeds up when several heads call and slows down when the set points are reached, metering the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each head according to its demand. Shutting off an unoccupied zone leaves the other two running. As on any multi-zone system of this type, the three heads work in the same mode, heating or cooling.\u003c\/p\u003e\n\u003ch3\u003eSummer in a railroad-style unit\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e for the three zones. The front gets the sun from the street, the back the heat from the kitchen, and the poorly ventilated middle bedroom holds on to warm air. With a head in each, the window air conditioners disappear and each room is set separately. Extended low-speed operation removes moisture from the air; each head also offers a dehumidification mode.\u003c\/p\u003e\n\u003ch3\u003eThe 22.2 SEER2, 13.6 EER2 and 10.3 HSPF2 ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e: cooling efficiency over a whole summer.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e: cooling at full load, during a heat wave; at 13.6, it is a strong point of this system.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e: heating efficiency over the whole cold season, the rating that weighs most on the bill in Quebec.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP\u003c\/strong\u003e: the ratio between heat delivered and electricity consumed at a specific temperature, here 2.40 at -8 °C and 1.90 at -15 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe $3,960 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$3,960\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstallation and maintenance\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003cp\u003eIn a railroad layout, the line routes need some thought. Each head gets its own \u003cstrong\u003erefrigerant line set\u003c\/strong\u003e back to the condenser. The one for the back head is short; the one for the front head is the longest and runs, depending on the building, outside in a line cover, through a basement ceiling or through a closet. We show you each route before drilling. Each head also has its own sloped condensate \u003cstrong\u003edrain\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe condenser is connected to a \u003cstrong\u003ededicated circuit\u003c\/strong\u003e, checked at the panel during the visit. Commissioning includes the vacuum, the leak test, a check of each zone and setup of the three remotes with you.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of all three heads every two weeks in season; the kitchen one gets dirty faster. Keep the condenser clear of snow, ice falling from the balconies and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 3-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A. We assess your home from front to back and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797761556772,"sku":"MHMZ436DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_3_ZONES_3_TONNES_36000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082560"},{"product_id":"thermopompe-4-zones-conforto-mhmz-36000-btu-r410a","title":"4-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A","description":"\u003ch2\u003eTwo offices, a living room and a bedroom: four zones for a home where people also work\u003c\/h2\u003e\n\u003cp\u003eNow that work often happens at home, rooms are no longer used the way they were. Two offices are full from nine to five, the living room fills up in the evening and the bedroom is only used at night. Heating the whole house to the same temperature all day no longer makes sense. The \u003cstrong\u003e4-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A\u003c\/strong\u003e gives each of these four rooms its own \u003cstrong\u003ewall head\u003c\/strong\u003e and set point, all connected to a single \u003cstrong\u003eMHMZ436DACFC condenser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e3-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e4 zones\u003c\/strong\u003e here, which is its maximum of 4. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e22.2 SEER2\u003c\/strong\u003e, \u003cstrong\u003e13.6 EER2\u003c\/strong\u003e and \u003cstrong\u003e10.3 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495072\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$3,960 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWorking from home changes how you heat\u003c\/h3\u003e\n\u003cp\u003eWhen two people work in two separate rooms, those two rooms are the ones that need to be comfortable during the day, not the bedroom or the living room. With one head per room, the offices keep their working set point while the rest of the house stays a little cooler. In the evening, demand shifts to the living room; at night, to the bedroom. Each zone only consumes when it is in use.\u003c\/p\u003e\n\u003cp\u003eThis size targets a complete mid-sized home: a two-storey whose upper floor has a bedroom and two small rooms converted into offices, a bungalow with a basement office, or a large condo. The result depends on the insulation; in an older house, the \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e stay in place for deep cold.\u003c\/p\u003e\n\u003ch3\u003eFour heads, four uses\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMHWAL18DACFC\u003c\/strong\u003e, the largest of the three intended heads, goes in the living room. The \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e suits the main bedroom, and the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e the offices, which are generally small rooms. The load calculation confirms each choice, taking into account each room's exposure and the heat given off by computers and screens.\u003c\/p\u003e\n\u003cp\u003eThe four heads share the condenser's capacity. During the day, the two offices take most of it; in the evening, the living room. With 4 zones out of a maximum of 4, every connection is used.\u003c\/p\u003e\n\u003ch3\u003eThe sun-exposed office, a case to plan for\u003c\/h3\u003e\n\u003cp\u003eOne rule applies to every multi-zone system of this type: the heads on the same condenser work in the same mode, all heating or all cooling. In most homes, this goes unnoticed. A south-facing office, with computer equipment on all day, can however get too warm on a sunny April afternoon while the rest of the house still asks for heat.\u003c\/p\u003e\n\u003cp\u003eWe take this into account from the visit onward: the choice and placement of the office head, blinds or curtains to cut direct sun, a lower set point for the office in heating mode. On these shoulder-season days, a slightly lower office set point almost always settles the matter. We prefer to explain it before the installation rather than let you find out in April.\u003c\/p\u003e\n\u003ch3\u003eWinter according to the certificate\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e33,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.40\u003c\/strong\u003e, and \u003cstrong\u003e36,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 1.90\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e36,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eAt -15 °C, the four heads therefore share 100% of the condenser's nominal size. A COP of 1.90 means that at that temperature, each kilowatt-hour consumed returns 1.90 kilowatt-hours of heat, where an electric baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605816\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat and defrost\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. We therefore recommend keeping the existing baseboards, set slightly below the heads' set point; they stay off for most of the winter. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes, during which the heads stop blowing warm air and a cloud of vapour rises from the outdoor unit. This is normal, and the baseboards fill in these short pauses.\u003c\/p\u003e\n\u003ch3\u003eThe inverter compressor and small demands\u003c\/h3\u003e\n\u003cp\u003eA home where people work creates many small demands: a single office occupied on a Friday, a bedroom warming up before bedtime. The \u003cstrong\u003einverter compressor\u003c\/strong\u003e adapts by running slowly and metering just enough \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e for the head that is calling. It speeds up when several zones ask at once, without the repeated starts that would wear out the unit.\u003c\/p\u003e\n\u003ch3\u003eSummer: cool offices during working hours\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e for the four zones. The offices, warmed by the sun and the equipment, are cooled during the day, the bedroom only for the night. Extended low-speed operation removes moisture from the air, which makes a working day more comfortable without cold air blowing on the desk. Each head also offers a dehumidification mode.\u003c\/p\u003e\n\u003ch3\u003eThe ratings, in plain terms\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eHSPF2\u003c\/strong\u003e of 10.3 measures heating efficiency over the whole cold season; in Quebec, it is the rating that weighs most on the bill. The \u003cstrong\u003eSEER2\u003c\/strong\u003e of 22.2 measures cooling efficiency over a whole summer, and the \u003cstrong\u003eEER2\u003c\/strong\u003e of 13.6 measures cooling at full load, during a heat wave. The \u003cstrong\u003eCOP\u003c\/strong\u003e expresses efficiency at a specific temperature: 2.40 at -8 °C and 1.90 at -15 °C.\u003c\/p\u003e\n\u003ch3\u003eThe $3,960 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$3,960\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstallation and maintenance\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eVisit and load calculation\u003c\/strong\u003e: each room is measured, and its exposure and use are noted.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHead placement\u003c\/strong\u003e: in an office, the head blows across the room without aiming directly at the workstation.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCondenser\u003c\/strong\u003e: above the snow line, on a wall bracket or a stand, sheltered from snow sliding off the roof.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant lines\u003c\/strong\u003e: one set per head, grouped in a line cover on the facade or run indoors when possible.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrains\u003c\/strong\u003e: one sloped condensate drain per head.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eElectrical\u003c\/strong\u003e: a \u003cstrong\u003ededicated circuit\u003c\/strong\u003e for the condenser, checked at the panel.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommissioning\u003c\/strong\u003e: vacuum, leak test, check of each zone and setup of the four remotes with you.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of all four heads every two weeks in season, preferably on the same day. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 4-Zone Heat Pump CONFORTO MHMZ | 36,000 BTU - R410A. We assess your four rooms and how they are used, and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797773418788,"sku":"MHMZ436DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_4_ZONES_3_TONNES_36000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082571"},{"product_id":"thermopompe-2-zones-conforto-mhmz-48000-btu-r410a","title":"2-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A","description":"\u003ch2\u003eAn intergenerational home, two households, two settings and a single condenser\u003c\/h2\u003e\n\u003cp\u003eWhen parents move into a suite finished in the basement or in an addition, the house shelters two households with neither the same schedules nor the same idea of a comfortable temperature. The \u003cstrong\u003e2-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A\u003c\/strong\u003e gives each one its own \u003cstrong\u003ewall head\u003c\/strong\u003e and its own remote, fed by a single \u003cstrong\u003eMHMZ548DACFC condenser\u003c\/strong\u003e installed outside.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e4-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e2 zones\u003c\/strong\u003e here and accepts up to \u003cstrong\u003e5\u003c\/strong\u003e at most. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e21.8 SEER2\u003c\/strong\u003e, \u003cstrong\u003e11.7 EER2\u003c\/strong\u003e and \u003cstrong\u003e9.8 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495078\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$4,320 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eTwo households under one roof\u003c\/h3\u003e\n\u003cp\u003eIn an intergenerational home, needs differ from one floor to the next. Grandparents often prefer a warmer house and spend their days at home; the family on the ground floor leaves in the morning and comes back in the evening. A single set point for the whole house is bound to leave someone unhappy. With two zones, each household sets its own unit as it sees fit, without negotiating over a thermostat.\u003c\/p\u003e\n\u003cp\u003eThis size also suits any house that divides into two large, well-separated spaces: an open ground floor and a finished basement, a house and its addition, or a large single-storey house whose bedroom wing is closed off. The load calculation for each space confirms that the size is right.\u003c\/p\u003e\n\u003ch3\u003eTwo large heads\u003c\/h3\u003e\n\u003cp\u003eFor the main living space, often open to the kitchen, we usually plan the \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e, the largest of the intended heads. The second unit gets the head that matches its load: another MHWAL24DACFC if it is just as large, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e if it is a more compact studio. The \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e is better suited to small closed rooms.\u003c\/p\u003e\n\u003cp\u003eThe two heads share the condenser's capacity. When both units call at full demand, it is split between them; when only one is occupied, it gets all the available capacity. With 2 zones out of a maximum of 5, three connections remain free to equip closed bedrooms later, after checking the remaining capacity.\u003c\/p\u003e\n\u003ch3\u003eA single mode for both units\u003c\/h3\u003e\n\u003cp\u003eThere is one thing to know before choosing this system: the heads on the same condenser always work in the same mode, all heating or all cooling. Each household sets its own temperature, but not the mode. In practice, both units live through the same season and the question rarely comes up; it can, however, arise on a few spring or fall days. We discuss it during the visit to agree with you on how to handle those days.\u003c\/p\u003e\n\u003cp\u003eThe solution is usually simple. On a mild day when one unit needs a little heat and the other does not, the second unit's head can be turned off or switched to fan mode while the first keeps heating. Each unit keeps its own remote, which prevents one household from unintentionally changing the other's setting.\u003c\/p\u003e\n\u003ch3\u003eWhat the certificate shows for winter\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e36,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.30\u003c\/strong\u003e, and \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 2.00\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eThe -15 °C point corresponds to 94% of the 48,000 BTU nominal size. At that temperature, a COP of 2.00 means that each kilowatt-hour consumed returns two kilowatt-hours of heat, where an electric baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605819\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat during deep cold\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. In a unit occupied by older people, we are particularly keen on keeping the backup in place: the existing \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e, set slightly below the heads' set point, stay off most of the time and take over during extreme cold. They also fill in the \u003cstrong\u003edefrost cycles\u003c\/strong\u003e, those few minutes when the condenser melts the frost off its coil and the heads stop blowing warm air. A cloud of vapour above the outdoor unit is normal at those times.\u003c\/p\u003e\n\u003ch3\u003eThe inverter compressor between two units\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einverter compressor\u003c\/strong\u003e varies its speed according to the demand of the two heads and meters the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each one. During the day, it runs slowly for the only occupied unit; in the evening, it speeds up when both households are home. This continuous operation keeps temperatures steady and avoids the repeated starts that wear out equipment.\u003c\/p\u003e\n\u003ch3\u003eSummer in both units\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e48,000 BTU\/h\u003c\/strong\u003e for the two zones. On the ground floor, the windows and the kitchen load the room; in the basement, it is mostly humidity. Extended low-speed operation removes that moisture, and each head's dehumidification mode helps on muggy days.\u003c\/p\u003e\n\u003ch3\u003eThe 21.8 SEER2, 11.7 EER2 and 9.8 HSPF2 ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e: cooling efficiency over a whole summer.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e: cooling at full load, in hot weather.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e: heating efficiency over the whole cold season, the rating that weighs most on the bill of an electrically heated home.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP\u003c\/strong\u003e: the ratio between heat delivered and electricity consumed at a specific temperature, here 2.30 at -8 °C and 2.00 at -15 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe $4,320 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$4,320\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstallation and maintenance\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003cp\u003eAfter the visit and the load calculation, the condenser is installed above the snow line, on a stand or a sturdy bracket, away from snow sliding off the roof and from bedroom windows. A 4-ton condenser requires a larger \u003cstrong\u003ededicated circuit\u003c\/strong\u003e than a small wall-mounted heat pump: we check the panel's space and capacity during the visit.\u003c\/p\u003e\n\u003cp\u003eEach head gets its own \u003cstrong\u003erefrigerant line set\u003c\/strong\u003e back to the condenser, protected by a line cover outdoors. For a basement unit, the line goes through the foundation wall and the condensate \u003cstrong\u003edrain\u003c\/strong\u003e often needs a small pump, for lack of a natural slope; we determine that during the visit. Commissioning includes the vacuum, the leak test, a check of both zones and setup of the remotes with each household.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of both heads every two weeks in season; in an intergenerational home, agree on who takes care of each head. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 2-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A. We assess both units and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797773713700,"sku":"MHMZ548DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_2_ZONES_4_TONNES_48000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082560"},{"product_id":"thermopompe-3-zones-conforto-mhmz-48000-btu-r410a","title":"3-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A","description":"\u003ch2\u003eA cathedral-ceiling living room and two bedrooms, served by the same condenser\u003c\/h2\u003e\n\u003cp\u003eA living room with a cathedral ceiling is often the most beautiful room in the house and the hardest to keep comfortable. Heat rises to the ridge in winter, large windows let the sun in during summer, and the bedrooms, closed and lower, live in a completely different climate. The \u003cstrong\u003e3-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A\u003c\/strong\u003e treats these three spaces separately, with three \u003cstrong\u003ewall heads\u003c\/strong\u003e connected to a single \u003cstrong\u003eMHMZ548DACFC condenser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e4-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e3 zones\u003c\/strong\u003e here and accepts up to \u003cstrong\u003e5\u003c\/strong\u003e at most. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e21.8 SEER2\u003c\/strong\u003e, \u003cstrong\u003e11.7 EER2\u003c\/strong\u003e and \u003cstrong\u003e9.8 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495078\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$4,320 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe challenge of a high ceiling\u003c\/h3\u003e\n\u003cp\u003eIn a tall room, air settles in layers. Warm air collects under the ceiling, cool air stays at floor level, and your feet can be cold in a room that seems warm on the thermometer. The large glazed areas common in these living rooms add losses in winter and heat gains in summer. A small wall head is not enough to stir such a volume.\u003c\/p\u003e\n\u003cp\u003eThis size therefore targets homes whose main room is large and tall: a bungalow with a cathedral ceiling, a country house with a mezzanine, a living room extended under a sloped roof. The other two zones serve the bedrooms. The load calculation accounts for the room's actual volume, not just its floor area.\u003c\/p\u003e\n\u003ch3\u003eThe MHWAL24DACFC in a large volume\u003c\/h3\u003e\n\u003cp\u003eFor the living room, we plan the \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e, the largest of the intended heads. It is not installed at the top of the wall, where the air is already warm, but at a height that lets it blow toward the occupied zone and remains accessible for filter maintenance. It blows along the length of the room, toward the windows rather than against a wall.\u003c\/p\u003e\n\u003cp\u003eA ceiling fan helps a great deal in these rooms. Set to push air gently downward in winter, it brings the heat collected under the ridge back to the occupied zone and makes the head's work more effective. If your living room already has one, we take it into account when choosing the location.\u003c\/p\u003e\n\u003ch3\u003eThe two bedrooms\u003c\/h3\u003e\n\u003cp\u003eThe bedrooms get smaller heads: the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e for the main bedroom, the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e for a child's or guest room. Closed at night, they need their own set point, independent of the living room's.\u003c\/p\u003e\n\u003cp\u003eThe three heads share the condenser's capacity. During the day, the living room takes the largest share; at night, the bedrooms do. With 3 zones out of a maximum of 5, two connections remain free to equip another bedroom or an office later, after checking the remaining capacity.\u003c\/p\u003e\n\u003cp\u003eA mezzanine open to the living room is a special case. It benefits from the large room's air in winter, but it collects heat under the roof in summer and quickly becomes the hottest zone in the house. During the visit, we assess whether the living-room head is enough to cover it or whether it deserves its own head on one of the free connections.\u003c\/p\u003e\n\u003ch3\u003eWinter according to the certificate\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e36,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.30\u003c\/strong\u003e, and \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 2.00\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eA COP of 2.00 means that at -15 °C, each kilowatt-hour consumed returns two kilowatt-hours of heat, where an electric baseboard returns one. At -8 °C, the ratio rises to 2.30. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605819\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat and defrost\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. In a heavily glazed living room, backup remains worthwhile: the existing \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e or fireplace stay in place, set slightly below the heads' set point, and take over during extreme cold. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes; the heads then stop blowing warm air and a cloud of vapour rises from the outdoor unit. This is normal.\u003c\/p\u003e\n\u003ch3\u003eThe inverter compressor and its three zones\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einverter compressor\u003c\/strong\u003e varies its speed according to demand and meters the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each head. In the living room, it runs for long periods at moderate speed, which keeps the air moving continuously and limits stratification. Shutting off an unoccupied bedroom leaves the other two zones running normally. As on any multi-zone system of this type, the three heads work in the same mode, heating or cooling.\u003c\/p\u003e\n\u003ch3\u003eSummer under a cathedral ceiling\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e48,000 BTU\/h\u003c\/strong\u003e for the three zones. In a tall, glassy living room, sunny afternoons are what count: blinds on the upper windows lighten the load considerably. Extended low-speed operation removes moisture from the air, and each head offers a dehumidification mode for muggy days. The bedrooms, for their part, are cooled for the night without cooling the whole living room.\u003c\/p\u003e\n\u003ch3\u003eThe 21.8 SEER2, 11.7 EER2 and 9.8 HSPF2 ratings\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eHSPF2\u003c\/strong\u003e of 9.8 measures heating efficiency over the whole cold season; in Quebec, it is the rating that weighs most on the bill. The \u003cstrong\u003eSEER2\u003c\/strong\u003e of 21.8 measures cooling efficiency over a whole summer, and the \u003cstrong\u003eEER2\u003c\/strong\u003e of 11.7 measures cooling at full load, in hot weather. The \u003cstrong\u003eCOP\u003c\/strong\u003e expresses efficiency at a specific temperature: it is the ratio between heat delivered and electricity consumed.\u003c\/p\u003e\n\u003ch3\u003eThe $4,320 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$4,320\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstallation and maintenance\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003cp\u003eAfter the visit and the load calculation, the condenser is installed above the snow line, on a stand or a sturdy bracket, away from snow sliding off the roof. A 4-ton condenser requires a larger \u003cstrong\u003ededicated circuit\u003c\/strong\u003e than a small wall-mounted heat pump; we check the panel's space and capacity during the visit.\u003c\/p\u003e\n\u003cp\u003eEach head gets its own \u003cstrong\u003erefrigerant line set\u003c\/strong\u003e back to the condenser, grouped in a line cover outdoors, and its own sloped condensate \u003cstrong\u003edrain\u003c\/strong\u003e. Commissioning includes the vacuum, the leak test, a check of each zone and setup of the three remotes with you.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of all three heads every two weeks in season; the living-room one comes out with a stepladder, hence the importance of its location. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 3-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A. We assess your living room and bedrooms and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797774074148,"sku":"MHMZ548DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_3_ZONES_4_TONNES_48000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082560"},{"product_id":"thermopompe-4-zones-conforto-mhmz-48000-btu-r410a","title":"4-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A","description":"\u003ch2\u003eFour zones on three levels: basement, ground floor and upper floor, a single 4-ton condenser\u003c\/h2\u003e\n\u003cp\u003eIn a three-level house, each floor has its own climate. The basement stays cool and damp, the ground floor loses its heat through large windows, and the upper floor receives all the warm air rising up the staircase. The \u003cstrong\u003e4-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A\u003c\/strong\u003e spreads four \u003cstrong\u003ewall heads\u003c\/strong\u003e over these three levels and connects them to a single \u003cstrong\u003eMHMZ548DACFC condenser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e4-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e4 zones\u003c\/strong\u003e here and accepts up to \u003cstrong\u003e5\u003c\/strong\u003e at most. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e21.8 SEER2\u003c\/strong\u003e, \u003cstrong\u003e11.7 EER2\u003c\/strong\u003e and \u003cstrong\u003e9.8 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495078\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$4,320 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThree levels, three climates\u003c\/h3\u003e\n\u003cp\u003eIn winter, heat from the ground floor rises to the upper floor, which becomes the warmest level, while the basement stays cold at floor level. In summer, it is the reverse: the upper floor overheats under the roof and the basement, cool but damp, mostly needs to be dried out. A single unit, set to a single set point, cannot satisfy all three levels at once.\u003c\/p\u003e\n\u003cp\u003eWith heads spread over the three levels, each floor is set according to its use: a basement kept a little cooler when it is empty, a bedroom cooler for sleeping, a living space comfortable in the evening. This avoids the classic single-thermostat situation, where the upper floor gets too hot because the set point was raised to warm the basement.\u003c\/p\u003e\n\u003cp\u003eThis size targets a large two-storey house with a finished basement, or a two-storey whose basement serves as a family room. The result depends on the envelope: in a well-insulated house, the four heads carry most of the heating and all of the cooling. In an older house, we calculate the share left to the \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eHow the four heads are distributed\u003c\/h3\u003e\n\u003cp\u003eOn the ground floor, the \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e, the largest of the intended heads, serves the living space. Upstairs, the main bedroom gets the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and a second bedroom the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e. In the basement, the choice depends on the floor area and the insulation of the foundation walls: the MHWAL12DACFC for a mid-sized family room, the MHWAL24DACFC for a large open basement. The load calculation decides.\u003c\/p\u003e\n\u003cp\u003eThe four heads share the condenser's capacity. When they all call at full demand, it is split between them; the rest of the time, the occupied levels benefit from the capacity the others are not using. With 4 zones out of a maximum of 5, one connection remains free for a room added later, after checking the remaining capacity.\u003c\/p\u003e\n\u003ch3\u003eThe electrical panel first\u003c\/h3\u003e\n\u003cp\u003eA 4-ton condenser requires a larger \u003cstrong\u003ededicated circuit\u003c\/strong\u003e than a small wall-mounted heat pump. During the visit, we open the panel: available space, capacity of the electrical service, loads already connected such as a range, a dryer or a water heater. In a house whose panel is already heavily loaded, an upgrade may be needed; we point it out during the visit, and that work appears in the written quote just like the unit.\u003c\/p\u003e\n\u003ch3\u003eWhat the certificate shows\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e36,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.30\u003c\/strong\u003e, and \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 2.00\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eAt -15 °C, the four heads therefore share 94% of the 48,000 BTU nominal size, and each kilowatt-hour consumed returns two kilowatt-hours of heat, where an electric baseboard returns one. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605819\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat and defrost\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. We therefore recommend keeping the existing baseboards, set slightly below the heads' set point: they stay off for most of the winter and take over during extreme cold. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes; the heads then stop blowing warm air and a cloud of vapour rises from the outdoor unit. This is normal.\u003c\/p\u003e\n\u003ch3\u003eThe inverter compressor from one level to the next\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einverter compressor\u003c\/strong\u003e varies its speed according to the demand of the four heads and meters the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each one. In winter, the upstairs head often slows down on its own, benefiting from the rising heat, while the basement head works harder. The four heads always work in the same mode, heating or cooling, as on any multi-zone system of this type. Shutting off an unoccupied zone leaves the other three running normally.\u003c\/p\u003e\n\u003ch3\u003eSummer: the upper floor for heat, the basement for humidity\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e48,000 BTU\/h\u003c\/strong\u003e for the four zones. The upstairs heads carry most of the effort on hot evenings. In the basement, dehumidification mode removes the damp air without needlessly cooling the room. Everywhere, extended low-speed operation makes the air drier and more comfortable.\u003c\/p\u003e\n\u003ch3\u003eThe certified ratings, in plain terms\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e9.8 HSPF2\u003c\/strong\u003e: heating efficiency over the whole cold season, the rating that weighs most on the bill in Quebec.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e21.8 SEER2\u003c\/strong\u003e: cooling efficiency over a whole summer.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e11.7 EER2\u003c\/strong\u003e: cooling at full load, in hot weather.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP\u003c\/strong\u003e: the ratio between heat delivered and electricity consumed at a specific temperature, here 2.30 at -8 °C and 2.00 at -15 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe $4,320 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$4,320\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eAn installation over three levels\u003c\/h2\u003e\n\u003ch3\u003eLines, drains and commissioning\u003c\/h3\u003e\n\u003cp\u003eThe condenser is installed where the four line routes are shortest, above the snow line, on a stand or a sturdy bracket, away from snow sliding off the roof. Each head gets its own \u003cstrong\u003erefrigerant line set\u003c\/strong\u003e: the basement one goes through the foundation wall, the upstairs ones run up the facade in a painted line cover or through a closet. We show you each route before drilling.\u003c\/p\u003e\n\u003cp\u003eEach head also has its own sloped condensate \u003cstrong\u003edrain\u003c\/strong\u003e. In the basement, a small condensate pump often becomes necessary for lack of a natural slope; we determine that during the visit. Commissioning includes the vacuum, the leak test, a check of each zone and setup of the four remotes with you.\u003c\/p\u003e\n\u003ch3\u003eMaintenance\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of all four heads every two weeks in season, preferably on the same day. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains, checks the condensate pump if there is one and inspects the electrical connections. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 4-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A. We assess your three levels and your electrical panel and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797783773476,"sku":"MHMZ548DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_4_ZONES_4_TONNES_48000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082570"},{"product_id":"thermopompe-5-zones-conforto-mhmz-48000-btu-r410a","title":"5-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A","description":"\u003ch2\u003eA whole family home switched to a heat pump: five zones, a single outdoor unit\u003c\/h2\u003e\n\u003cp\u003eReplacing the heating of an entire house is not done by adding one head in the living room. Each room where people actually live needs to be equipped, without covering the facade with outdoor units. The \u003cstrong\u003e5-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A\u003c\/strong\u003e does it with five \u003cstrong\u003ewall heads\u003c\/strong\u003e, one per main room, all connected to a single \u003cstrong\u003eMHMZ548DACFC condenser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e4-ton\u003c\/strong\u003e condenser serves \u003cstrong\u003e5 zones\u003c\/strong\u003e here, which is its maximum of 5. The wall heads intended for it are the \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e, the \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e and the \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e. Its certified ratings are \u003cstrong\u003e21.8 SEER2\u003c\/strong\u003e, \u003cstrong\u003e11.7 EER2\u003c\/strong\u003e and \u003cstrong\u003e9.8 HSPF2\u003c\/strong\u003e. The system is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified with the \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e under \u003cstrong\u003eENERGY STAR ID 2495078\u003c\/strong\u003e, and it qualifies for a \u003cstrong\u003e$4,320 LogisVert grant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eMoving from baseboards to a heat pump, room by room\u003c\/h3\u003e\n\u003cp\u003eIn a house heated with \u003cstrong\u003eelectric baseboards\u003c\/strong\u003e, each room has its own heater. For a heat pump to truly take over, it has to be present in the rooms that matter: the living space, the kitchen or dining room, the bedrooms, the office. Five zones cover most of a medium to large family home, whether a two-storey, a large bungalow with a basement or an extended house.\u003c\/p\u003e\n\u003cp\u003eThe baseboards do not disappear, however. They remain the backup for extreme cold in the equipped rooms, and the main heating in the small rooms that do not get a head.\u003c\/p\u003e\n\u003ch3\u003eWhich rooms get a head\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMHWAL24DACFC\u003c\/strong\u003e, the largest of the intended heads, goes in the living space, often open to the kitchen. The \u003cstrong\u003eMHWAL12DACFC\u003c\/strong\u003e suits the main bedroom or a separate dining room. The \u003cstrong\u003eMHWAL09DACFC\u003c\/strong\u003e serves the children's rooms and the office. The load calculation confirms each choice.\u003c\/p\u003e\n\u003cp\u003eSome rooms stay without a head, and that is intentional: bathrooms, laundry room, hallway, small entryway. These spaces are small, often closed, and a wall head would add nothing that their baseboard does not already do. We go over the list with you room by room during the visit, showing what changes and what stays.\u003c\/p\u003e\n\u003ch3\u003eFive heads on 48,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe five heads share the condenser's capacity. The rooms of a family home rarely reach full demand all at the same time; the rest of the time, the occupied rooms benefit from the capacity the others are not using. On the coldest nights, they all call together, and that is the moment our calculation checks. With 5 zones out of a maximum of 5, every connection is used.\u003c\/p\u003e\n\u003cp\u003eThe condenser's \u003cstrong\u003einverter compressor\u003c\/strong\u003e follows these variations by adjusting its speed and metering the \u003cstrong\u003eR-410A refrigerant\u003c\/strong\u003e sent to each head. The five heads always work in the same mode, heating or cooling, as on any multi-zone system of this type. Shutting off an unoccupied zone leaves the other four running.\u003c\/p\u003e\n\u003ch3\u003eOne unit outside, five neatly grouped routes\u003c\/h3\u003e\n\u003cp\u003eFive separate wall-mounted heat pumps would mean five outdoor units around the house. Here, a single condenser, set above the snow line on a stand or a sturdy bracket, away from snow sliding off the roof. All five \u003cstrong\u003erefrigerant line sets\u003c\/strong\u003e run back to it; we group them in one or two painted line covers that follow the lines of the facade, or run them indoors when a closet, the attic or the basement ceiling allows it. You see each route before the first hole is drilled.\u003c\/p\u003e\n\u003ch3\u003eWhat the certificate shows for winter\u003c\/h3\u003e\n\u003cp\u003eThe certificate lists \u003cstrong\u003e36,000 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F), with a \u003cstrong\u003eCOP of 2.30\u003c\/strong\u003e, and \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 2.00\u003c\/strong\u003e. The maximum published capacity is \u003cstrong\u003e45,000 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published.\u003c\/p\u003e\n\u003cp\u003eA COP of 2.00 means that at -15 °C, each kilowatt-hour consumed returns two kilowatt-hours of heat, where a baseboard returns one. At -8 °C, the ratio rises to 2.30. For a house moving from baseboards to a heat pump, this is the figure that sums up the change. ENERGY STAR's \u003cstrong\u003ecold-climate designation\u003c\/strong\u003e confirms that the combination meets the low-temperature performance criteria.\u003c\/p\u003e\n\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210605819\u003c\/strong\u003e, published by NEEP.\u003c\/p\u003e\n\u003ch3\u003eBackup heat and defrost\u003c\/h3\u003e\n\u003cp\u003eThe certificate does not publish a point colder than -15 °C. The baseboards in the equipped rooms therefore stay set slightly below the heads' set point: off for most of the winter, they take over during extreme cold. In cold, humid weather, the condenser also runs \u003cstrong\u003edefrost cycles\u003c\/strong\u003e of a few minutes; the heads then stop blowing warm air and a cloud of vapour rises from the outdoor unit. This is normal.\u003c\/p\u003e\n\u003ch3\u003eCooling the whole house\u003c\/h3\u003e\n\u003cp\u003eIn cooling, the system is built around a nominal size of \u003cstrong\u003e48,000 BTU\/h\u003c\/strong\u003e for the five zones. The whole house is cooled, room by room, without window air conditioners or portable units. The bedrooms are set for the night, the living space for the day, and an empty room can be shut off. Extended low-speed operation removes moisture from the air; each head also offers a dehumidification mode.\u003c\/p\u003e\n\u003ch3\u003eThe 21.8 SEER2, 11.7 EER2 and 9.8 HSPF2 ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e: heating efficiency over the whole cold season. For an entire house converted to a heat pump, this is the rating that weighs most.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e: cooling efficiency over a whole summer.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e: cooling at full load, in hot weather.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP\u003c\/strong\u003e: the ratio between heat delivered and electricity consumed at a specific temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe $4,320 LogisVert grant\u003c\/h3\u003e\n\u003cp\u003eThe system is listed in Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, with \u003cstrong\u003e$4,320\u003c\/strong\u003e for the owner of an existing home, according to the list in effect on the installation date. We confirm eligibility before signing and prepare the detailed invoice, model numbers and proof of payment. Our page on the \u003ca href=\"\/en\/pages\/subvention-thermopompes-efficaces-dhydro-quebec\"\u003eefficient heat pump grant\u003c\/a\u003e summarizes the program's conditions.\u003c\/p\u003e\n\u003ch2\u003eInstallation and follow-up\u003c\/h2\u003e\n\u003ch3\u003eOur installation\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\u003cstrong\u003eVisit and load calculation\u003c\/strong\u003e: each room is measured, and the list of equipped rooms is drawn up with you.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eElectrical panel\u003c\/strong\u003e: a 4-ton condenser requires a larger \u003cstrong\u003ededicated circuit\u003c\/strong\u003e; we check the panel's space and capacity.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLines and drains\u003c\/strong\u003e: one line set and one sloped condensate drain per head; a pump only where gravity is not enough.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommissioning\u003c\/strong\u003e: vacuum, leak test, check of each zone, then setup of the five remotes with you.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eMaintaining five heads\u003c\/h3\u003e\n\u003cp\u003eRinse the filters of all five heads every two weeks in season; doing them all on the same day keeps any from being forgotten. Keep the condenser clear of snow and leaves, without covering it in winter. One \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance visit per year cleans the coils, fans and drains and checks the electrical connections; on a system the whole house depends on, it reduces the risk of a shutdown in the middle of winter. Our \u003ca href=\"\/en\/pages\/services-de-nettoyage-climatiseurs-et-thermopompes-murales-grand-montreal\"\u003ecleaning service\u003c\/a\u003e takes over when you prefer to hand off the annual visit.\u003c\/p\u003e\n\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\n\u003cp\u003eA family business active for more than fifteen years in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the 5-Zone Heat Pump CONFORTO MHMZ | 48,000 BTU - R410A. We assess your home room by room and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Conforto","offers":[{"title":"Default Title","offer_id":67797783839012,"sku":"MHMZ548DACFC","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MULTIZONE_CONFORTO_MAXIMUM_MHMZ_R410A_5_ZONES_4_TONNES_48000_BTU_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082570"}],"url":"https:\/\/airgreen.ca\/en\/collections\/thermopompe-multi-zone-conforto-installation-a-montreal-laval-longueuil-rive-sud-et-rive-nord.oembed","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}