ELIOS E-MULTI 6-Head Heat Pump + 48,000 BTU Compressor | Longueuil
The ELIOS E-Multi 48 000 multi-zone heat pump heats and cools 6 rooms with a single outdoor unit. it delivers 36,800 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $4,416 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
6 rooms, one outdoor unit.
Compared with the 82 multi-zone systems of 48,000 BTU we sell. Every number on this page carries its source.
The parts that make a multi-zone system.
Tap a part to learn more.
Outdoor unit
One compressor for the whole house. It supplies up to 6 heads and modulates from 13,000 to 36,800 BTU/h depending on what the rooms call for (NEEP).
Base pan heater
A heater keeps the outdoor unit’s base pan free of ice below 1 °C and during defrost (NEEP).
Refrigerant lines
One pair of lines per head.
Indoor heads
One head per room, each with its own remote and temperature. The combination is chosen in the “Zones” menu.
Control
Each zone is set separately.
Turn rooms on and off. Watch the power being shared.
One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.
Tell us your rooms. We tell you if this size is enough.
Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.
The whole series at a glance: find the box that fits you.
Each box is a product: the outdoor unit’s size, and the number of heads.
At −15 °C, it still delivers 75 % of its rated capacity.
Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.
It slows down, it speeds up: the certified modulation range
Light bar: from minimum to maximum capacity. Dark mark: the rated value.
At every temperature, cheaper than baseboards.
Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.
The official ratings, on the same scales as before.
SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.
A grant you can calculate, not guess.
The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $120 per 1,000 BTU/h is the rate for ENERGY STAR cold-climate heat pumps (guide v1.10).
Where it ranks among same-size multi-zone systems.
Compared with the 82 multi-zone systems of 48,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.
Against three other brands in its class.
Same rated size, other manufacturers. Pick the opponent.
One multi-zone or several wall units? Both sides, honestly.
We compare both options on your floor plan during the estimate.
What to know before installing a multi-zone system.
Dimensions, wiring and lines, drawn. Then our six steps.
The outdoor unit, dimensioned
One circuit for the whole house
Published sound levels, on one scale.
We use the outdoor figure to choose where the unit goes.
What is particular about this machine.
Only facts published by ENERGY STAR, NEEP or the manufacturer.
Every number, and where it comes from.
Each line carries its source; a line with no published value is not shown.
The manufacturer’s documentation, as PDF.
Everything we have written about this system.
A multi-zone solution designed for the real climate of Greater Montreal
At AirGreen, we have been installing multi-zone HVAC systems for years in single-family homes, duplexes, and multi-unit buildings in Longueuil , Montreal , Laval , and on the North and South Shores . The ELIOS E-MULTI 6-head heat pump with a 48,000 BTU compressor is one of the systems we recommend when the needs are clear: to efficiently heat and cool multiple rooms, with precise zone control, without requiring multiple outdoor units.
This model was designed to meet the very specific constraints of Quebec: long winters, significant temperature differences, buildings with varied configurations, high requirements in terms of energy efficiency and eligibility for provincial subsidies.
Why a 6-head multi-zone system truly changes the comfort experience
In practice, a multi-zone system is only worthwhile if it is correctly sized and installed. The ELIOS E-MULTI 48,000 BTU can supply up to 6 independent zones , each with its own indoor unit. This means:
-
Temperature adjusted room by room , without compromise.
-
Reduction of comfort conflicts between floors, rooms and common areas.
-
Optimization of electricity consumption , because only the areas actually used are working.
-
A single outdoor unit , a major advantage for municipal regulations, condominiums and the aesthetics of facades.
In several projects carried out by AirGreen in Longueuil and Boucherville , this type of configuration made it possible to replace old partial electric or forced-air systems, while preserving the architectural integrity of the buildings.
Concrete examples of compatible indoor units
The system's flexibility is a key point: it accepts different styles of indoor units depending on the actual needs of the occupants:
-
Wall-mounted units (6,000 to 24,000 BTU) for bedrooms and living rooms.
-
Discreet ducted units for corridors or open areas.
-
4-way cassettes for suspended ceilings.
-
Single-channel cassette decks and consoles , often chosen in targeted renovations.
This modularity allows AirGreen to adapt each project, rather than forcing a single solution.
Technical performance adapted to Quebec winters
Reliable heating down to -25°C
The heating capacity down to -25°C is not just a marketing gimmick. In practice, this means the system continues to provide consistent heat during periods of intense cold, which are common in Montreal , Laval , and the North Shore . At -8°C, the heating output remains high, reducing reliance on supplemental electric heating.
In homes where we replaced electric baseboard heaters with this model, customers have noticed increased thermal stability and better heat distribution, even in distant rooms.
Measurable energy efficiency
The inverter compressor and R-454B refrigerant contribute to high efficiency:
-
SEER2 up to 21.3 depending on the configuration.
-
HSPF2 is efficient for seasonal heating .
-
ENERGY STAR® , including cold climate certification.
These features make the ELIOS E-MULTI 48,000 BTU eligible for the provincial LogisVert grant , currently valued at $4,080 , a deciding factor for many homeowners.
Silence, safety and everyday comfort
Controlled noise levels
Indoors, depending on the unit chosen, the noise level can drop to approximately 20 dB(A) in low mode. Outdoors, the compressor registers approximately 65 dB(A) , a value we consider acceptable for densely populated residential areas of Longueuil and Montreal , provided the installation is properly planned (anti-vibration mounts, strategic location).
Safety related to R-454B refrigerant
The system incorporates refrigerant leak detection mechanisms. In case of a malfunction:
-
The compressor stops automatically.
-
The internal fan continues to operate to limit the concentration of refrigerant.
-
A shut-off valve reduces the flow rate.
These elements are particularly important in multi-zone installations where several indoor units are distributed throughout the dwelling.
What we systematically check during the AirGreen installation
A high-performing multi-zone system depends directly on the quality of the installation. At AirGreen, we pay particular attention to:
-
Precise calculation of thermal loads per zone.
-
Compliance with the liquid and gas piping diameters for each evaporator.
-
Managing maximum lengths and elevation changes.
-
Electrical compliance: 220 V , MOP 45 A , suitable circuit breaker.
-
The positioning of the units to avoid air recirculation and noise pollution.
We have seen similar systems, poorly installed elsewhere, lose up to 20% of their actual effectiveness. This is precisely what we are avoiding.
Guarantee and peace of mind
The configuration offered by AirGreen for this model typically includes:
-
10 years on the compressor
-
10-year warranty on parts
-
6 years on labor, straight from the distributor (extension according to the option chosen)
In a multi-zone context, this coverage is essential, as it protects a significant investment over the long term.
Who is the ELIOS E-MULTI 6-head 48,000 BTU really for?
This system is particularly suitable for:
-
Large single-family homes.
-
Duplexes, triplexes and small apartment buildings.
-
Properties with varying comfort requirements depending on the room.
-
Projects where only one exterior unit is required by regulation or aesthetic choice.
In Longueuil , several of our clients have chosen this model to modernize existing buildings without completely redoing the ducts or central systems.
Why entrust your project to AirGreen
We don't just install equipment. We design a complete HVAC solution , tailored to your building, your lifestyle, and local climate conditions. Our team works daily in Montreal , Laval , Longueuil , and on the North and South Shores, with in-depth knowledge of building codes, subsidies, and site constraints.
Next Step!
For a precise assessment , a detailed estimate, or to verify your project's eligibility for the LogisVert grant, contact AirGreen Heat Pumps, Air Conditioning & Heating directly. Our team will support you from the initial analysis to commissioning, with complete transparency.
Warranty: 10 years on the compressor, 10 years on parts and 6 years on labor, straight from the distributor.
What people ask us about multi-zone systems.
Can I heat one room and cool another at the same time?
No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.
What happens when every room calls for heat?
They share the outdoor unit’s capacity: 36,800 BTU/h at −8 °C, 36,000 at −15 °C.
How many heads can I connect?
Up to 6 on this outdoor unit. This product is configured for 6 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 29 combinations, from 6+6+6+6+6+6 to 9+9+9+12+12+12 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$4,416 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.
Is it ENERGY STAR certified?
Yes, cold climate, ID 3799033. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −25 °C.
Is it noisy?
Indoors, the reference head goes down to 20 dB(A). Outdoors, 65 dB(A): we place the unit away from bedroom windows.
Why a multi-zone instead of several wall units?
One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.
What does the warranty cover?
Our sheet lists 10 years on the compressor and 10 years on parts. AirGreen extended warranty: possible.
A multi-zone system is planned room by room. At your home.
We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.