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Installation of a GREE FREE MATCH R32 DoubleZone heat pump in Chomedey, Laval: a discreet 2-zone solution for precise comfort in a residential space

AirGreen installs a GREE FREE MATCH R32 DoubleZone heat pump in Chomedey: 2-zone system, compact wall unit, precise HVAC installation, and comfort tailored for homes in Laval.

By AirGreen Climatisation & Chauffage Admin14 min read
Installation of a GREE FREE MATCH R32 DoubleZone heat pump in Chomedey, Laval: a discreet 2-zone solution for precise comfort in a residential space
Installation of a GREE FREE MATCH R32 DoubleZone heat pump in Chomedey, Laval: a discreet 2-zone solution for precise comfort in a residential space
Generic diagram: wall-mounted heat pump, indoor and outdoor units

In summer, the outdoor unit rejects the house's heat outside.

Generic illustration of this type of installation, not a survey of this job site. Tap a number.

  1. Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

A GREE wall-mounted unit installed with precision in an interior where every centimeter counted

In Chomedey, a dense and sought-after area of Laval, our AirGreen team completed the installation of a GREE FREE MATCH R32 DoubleZone heat pump, a 2 zones – 2 heads system designed to provide targeted comfort in two distinct areas of the home. This type of installation is especially relevant in Laval homes where rooms have different heating and cooling needs, particularly when the interior layout imposes height, access, or aesthetic constraints.

The photo of this project shows one of the GREE wall-mounted units installed very close to the ceiling, in a tight space, carefully positioned above a finished wall. You immediately notice the proximity between the indoor unit, the ceiling, and the side wall. This detail is important: an installation like this leaves little room for error. Clearances must be respected, good air distribution ensured, filter access preserved, existing surfaces protected, and connections integrated without compromising the room’s appearance.

In a DoubleZone heat pump project, success does not depend solely on the performance of the unit. It also relies on the precision of the installation work. A wall-mounted unit may seem simple once installed, but behind this sleek appearance are several technical decisions: the drilling angle, the drain slope, the routing of refrigerant lines, wall sealing, location choice, respecting minimum distances, and coordination with the outdoor unit.

In Chomedey, this installation perfectly illustrates the AirGreen approach: a clean, thoughtful HVAC installation adapted to the existing space and designed to last.

A GREE FREE MATCH R32 DoubleZone heat pump adapted for houses and condos in Laval

The GREE FREE MATCH R32 is a flexible multi-zone solution that allows connecting two indoor units to a single outdoor unit. For owners in Laval, Montreal, Longueuil, the North Shore, and the South Shore, this configuration offers an excellent compromise between performance, discretion, and zone control.

In a residence where two rooms have different needs, a single-zone heat pump can quickly show its limits. A single wall head can very well cool a main room, but it cannot always effectively reach a closed bedroom, a distant office, a basement, or a second living area. With a DoubleZone – 2 heads system, each zone receives its own diffusion point, allowing much more precise temperature control.

Why is the GREE FREE MATCH R32 system well suited to Chomedey?

Chomedey includes several types of housing: single-family homes, duplexes, condos, townhouses, older renovated buildings, properties with floors, and apartments where space available for HVAC equipment may be limited. In these contexts, a DoubleZone heat pump often represents an effective solution, as it improves comfort in two spaces without multiplying outdoor units.

The GREE FREE MATCH R32 system offers several concrete advantages:

  • a single outdoor unit for two indoor heads;
  • independent zone control;
  • good adaptation to closed or distant rooms;
  • a more discreet installation than a set of separate systems;
  • effective use of air conditioning during humid summers;
  • efficient heating in mid-season and during cold periods;
  • better management of daily comfort.

The refrigerant R32 is also an important element in recent systems. It provides interesting efficiency when used in a properly sized installation carried out according to best practices. For a customer comparing different options for a wall-mounted heat pump or multi-zone system, choosing a modern R32 model can be part of a long-term strategy, both for comfort and energy performance.

An indoor installation close to the ceiling: a precision challenge

The wall unit visible in the photo is installed in a very high area, almost touching the ceiling. This positioning requires great precision, as the space above the unit is limited. In this type of configuration, our technicians must ensure that the device can operate correctly, that air circulates well, and that HVAC maintenance operations remain possible.

A wall unit installed too close to the ceiling or too close to a side wall can create certain problems if the work is not well planned:

  • less efficient air circulation;
  • difficulty opening the front panel;
  • reduced access to filters;
  • risk of vibrations if the device is not perfectly fixed;
  • constraint on the drain passage;
  • less clean finish around the unit.

In this installation in Chomedey, the location was chosen considering these constraints. The unit is positioned to remain functional while maximizing the available space in the room. The installation also maintains a clean appearance: the white of the device blends with the wall and ceiling, allowing the wall unit to integrate without visually dominating the space.

The importance of the correct blowing angle

A wall-mounted heat pump should not only be placed where it physically fits. It must also be installed to effectively distribute air in the room. In the photo, the viewing angle clearly shows the lower air outlet of the unit. It is through this opening that heated or cooled air is directed into the living space.

When we install an indoor unit, we evaluate:

  • the distance between the unit and the occupied zones;
  • the direction of the airflow;
  • the presence of obstacles;
  • the ceiling height;
  • the shape of the room;
  • the natural air circulation;
  • the placement of furniture;
  • the zones where occupants spend the most time.

In a sector like Chomedey, many homes have rooms of modest size or walls already occupied by furniture, windows, frames, or light fixtures. The available space is not always ideal at first glance. Our role is then to find the best compromise between performance, aesthetics, and technical feasibility.

Comfort by zones: a real advantage for daily life

A GREE FREE MATCH R32 DoubleZone heat pump allows temperature adjustment according to the actual use of the rooms. This is essential for families, couples working from home, condo owners, or occupants who want to avoid overheating or overcooling the entire house.

For example, one unit can serve a living room used during the day, while the second can serve a bedroom or office. Occupants can adjust a zone differently depending on the time, sunlight, or activity. This flexibility is especially useful in summer, when some rooms quickly become warmer due to sun exposure, but also in winter, when areas farther from the main heating remain cool.

Zoned comfort also helps improve usage efficiency. Rather than asking a single device to handle a space that is too large or poorly distributed, the two indoor units each meet a specific need.

A solution suited for renovations and already finished spaces

The installation shown in the image was done in an already finished interior space, with painted walls, a finished ceiling, and limited maneuvering space. In this type of context, the team must work cleanly and carefully. This is not an open construction site where pipes can be hidden before wall finishing; everything must be done precisely to limit visual impact.

During a HVAC installation in an already finished space, we pay special attention to:

  • the protection of walls and floors;
  • the accuracy of drilling;
  • the limitation of dust;
  • the cleanliness around the unit;
  • the exact positioning of the wall plate;
  • the strength of the mounting;
  • the sealing of the wall penetration;
  • the interior and exterior finishing.

This level of care is especially important for customers who are already living in the house during the work. A well-organized installation reduces inconvenience and allows the room to be quickly restored.

Coordination between the two indoor units and the outdoor unit

In a DoubleZone installation, each indoor unit must be properly connected to the outdoor unit. This coordination requires more advanced technical planning than a single-zone installation. Considerations include pipe lengths, drainage slopes, electrical connections, the overall system capacity, and the individual needs of each zone.

A planning error can lead to significant consequences: uneven performance between the two zones, problematic drainage, efficiency losses, or difficult service access. That is why AirGreen plans the project before starting work, validating the most logical path for the pipes and ensuring that each system component can be installed under good conditions.

For this installation in Chomedey, the positioning of the wall-mounted head showed that the interior space required a compact and well-fitted solution. The goal was to achieve a clean result without sacrificing system performance.

Sizing: avoid rough estimates

The choice of a DoubleZone heat pump should never be based solely on a quick area estimate. Two rooms of the same size can have very different needs depending on insulation, sun exposure, number of windows, ceiling height, and daily use.

At AirGreen, we analyze several factors before recommending a system:

  • area of the zones to be treated;
  • room orientation;
  • building insulation;
  • door and corridor configuration;
  • ceiling height;
  • presence of large windows;
  • floor where the rooms are located;
  • usage habits;
  • heating and cooling expectations;
  • appropriate capacity of each indoor head.

A system that is too small risks running constantly without reaching the desired comfort. A system that is too large can create short cycles and less effective humidity control. In a multi-zone project, the right balance between the heads and the outdoor unit is therefore essential.

Subsidies and energy efficiency: check exact combinations

Owners in Laval, Montreal, Longueuil, the North Shore, and the South Shore often inquire about available subsidies for heat pumps. In the case of a multi-zone system like the GREE FREE MATCH R32, it is important to check the exact models installed, as eligibility may depend on the precise combination between the outdoor unit and the indoor heads.

We always recommend keeping:

  • the detailed invoice;
  • model numbers;
  • information on the outdoor unit;
  • information on each indoor unit;
  • proofs of installation;
  • documents related to energy efficiency;
  • the information needed to complete the application.

A common mistake is to assume a model is automatically eligible because it belongs to a recognized brand. In reality, financial aid programs often rely on specific criteria and certified combinations. At AirGreen, we help our clients better understand this step to avoid delays or incomplete applications.

Mistakes to avoid during an indoor installation like this

An indoor installation near the ceiling, in a confined space, must be done carefully. Here are the mistakes to avoid:

Installing the unit without sufficient clearance

The wall unit must be able to properly draw in and distribute air. Poor clearance can reduce performance.

Forgetting filter access

Filters must be easy to remove and clean. An installation that is too tight can complicate HVAC maintenance.

Neglecting the drain slope

Condensation must drain properly. A poor slope can cause leaks or water accumulation.

Choosing a location based only on appearance

Aesthetics are important, but the location must also allow effective air distribution and reliable technical connection.

Underestimating the complexity of a 2-zone system

A DoubleZone heat pump requires full coordination between the two indoor units and the outdoor unit. It is not simply two separate installations added together.

Practical tips after installation

To maintain the performance of the GREE FREE MATCH R32, owners should adopt a few simple habits:

  • clean the wall unit filters regularly;
  • avoid blocking the air outlet;
  • maintain a stable temperature rather than constantly changing settings;
  • monitor for unusual noises;
  • check that drainage works well in cooling mode;
  • keep the outdoor unit free of snow, leaves, and debris;
  • schedule professional maintenance when necessary.

A well-maintained system retains better efficiency, offers more consistent comfort, and reduces the risk of unexpected interventions.

An AirGreen installation designed for comfort and discretion

This installation in Chomedey shows that even a compact indoor installation can be clean, efficient, and well integrated when planned correctly. The GREE wall unit visible in the photo is installed in a tight space, but its positioning remains neat and functional. The device blends into the decor while fulfilling its main role: providing stable comfort in the served area.

For AirGreen, this type of project reflects our commitment to sustainable installations well adapted to residential realities. We work in houses and condos with very varied configurations, in Laval, Montreal, Longueuil, on the North Shore and the South Shore, and each site requires a different approach.

A well-thought-out 2-zone solution for Laval homeowners

The installation of a DoubleZone GREE FREE MATCH R32 heat pump in Chomedey is a concrete example of a modern HVAC solution adapted to the needs of homeowners who want better control over their comfort without undertaking major renovations. The 2 zones – 2 heads system allows treating two distinct spaces with a single outdoor unit, offering better usage flexibility and discreet indoor integration.

In a house or condo in Chomedey, this type of system can transform daily comfort: a cooler room in summer, a better-heated area in winter, a more pleasant office for teleworking, or a better-tempered bedroom at night. The important thing is to choose the right equipment, size it correctly, and install it precisely.

At AirGreen, we carry out this type of HVAC installation with special attention to visible and invisible details. The performance of a heat pump depends as much on the quality of the device as on the quality of the installation. That’s why each project is treated as a complete system, designed for comfort, reliability, and long-term satisfaction.

The steps

How it goes, from the first call to the end

The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.

Step 1 of 9The on-site estimate

We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.

  1. The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

And at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.

    Through the seasons

    What to do, season by season

    Three habits per season for this unit. They take a few minutes and prevent many calls.

    • Clean the indoor unit's filters.
    • Clear leaves and debris left on the outdoor unit by winter.
    • Test cooling before the first hot days.
    And at your place?

    Which type of equipment for your project?

    Pick what looks like your need.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.
    Going further

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    Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).

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