ELIOS E-MULTI 2-Head Heat Pump + 48,000 BTU Compressor | Longueuil
The ELIOS E-Multi 48 000 multi-zone heat pump heats and cools 2 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.
2 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.
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ELIOS E-MULTI 2-Head Heat Pump + 48,000 BTU Compressor | Longueuil
A multi-zone solution designed for the residential and multi-unit realities of the South Shore
At AirGreen , we have been installing multi-zone HVAC systems in Longueuil and throughout the South Shore for many years. The ELIOS E-MULTI 2-head heat pump with a 48,000 BTU compressor is one of the configurations we recommend when the needs are clear: to efficiently heat and cool several distinct spaces, with precise zone control, while maintaining excellent energy efficiency even in extreme cold.
This type of system is suitable for single-family homes , plexes , condos , as well as small multi-unit buildings where the usual compromises of classic centralized systems are to be avoided.
A flexible, multi-zone architecture that is truly usable in the field
The heart of this configuration lies in a 48,000 BTU ELIOS E-MULTI outdoor unit , capable of powering up to 6 indoor units , even though the version shown here is configured with 2 active zones . This reserve capacity offers a tangible advantage:
• improved heating stability
• fewer short cycles
• future scalability without compressor replacement
In practice, in Longueuil, we often see this system installed in buildings where an extension, a finished basement or a conversion into additional housing is planned in the medium term.
Extended compatibility of indoor units
The system accepts several formats:
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EMC wall units (6,000 to 24,000 BTU)
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ducted units
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1-channel or 4-channel cassettes
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consoles
This diversity makes it possible to adapt the HVAC design to the actual architecture of the building, without imposing a single type of air emitter.
Heating efficiency: a concrete response to Longueuil's climate
One of the most important criteria for our customers remains the heating capacity in cold weather .
This ELIOS model is designed to operate down to -25°C , with measured and consistent performance.
Key data for the 48,000 BTU model:
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Rated capacity : 48,000 BTU
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Power at -8°C : ~34,000 BTU
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Power at -15°C : ~36,000 BTU
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COP at -8 °C : 3.9
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ENERGY STAR® Certification – Cold Climate
In practice, this means a real reduction in the use of auxiliary heating , even during the prolonged cold spells that regularly affect the South Shore of Montreal .
Energy efficiency and R-454B refrigerant: a choice for the future
The ELIOS E-MULTI heat pump uses R-454B refrigerant , known for:
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a reduced global warming potential (GWP)
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increased compliance with future environmental standards
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improved volumetric efficiency
The performance indicators are solid:
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SEER2 up to 21.3
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High HSPF2 in multi-zone configuration
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EER2 optimized for actual loads
For our customers in Longueuil, this translates into better-controlled electricity bills , particularly during periods of prolonged summer air conditioning.
Zone-based comfort management: an often underestimated daily advantage
Each zone operates independently. In practice, this allows:
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to lower the temperature in unoccupied rooms
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to adapt comfort according to sun exposure
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to limit conflicts over adjustments in families or multiple dwellings
We regularly observe that this fine-tuning of comfort not only improves satisfaction, but also the overall lifespan of the system, because the machine works more intelligently.
Noise level: a critical point that has been controlled
In Longueuil's dense residential projects, noise is a real issue.
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Outdoor unit : ~65 dB(A)
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Indoor units : up to 20 dB(A) depending on the model and speed
During installation, AirGreen pays particular attention to:
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the exact location of the compressor
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vibration isolation
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the configuration of the supports
These details make a tangible difference on a daily basis.
HVAC Installation in Longueuil: What We Do Differently at AirGreen
Beyond the product itself, the quality of HVAC installation determines 50% of the actual performance.
On this type of ELIOS E-MULTI system, our teams systematically take into account:
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load calculation by zone
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the exact length of piping
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refrigeration balancing
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future access for HVAC maintenance
We have installed similar configurations in Longueuil-East, Saint-Hubert, Greenfield Park and in several condominiums on the South Shore, with very positive feedback on the stability of winter heating.
LogisVert subsidy: a major financial lever
This heat pump is eligible for the LogisVert provincial subsidy , with an amount of up to $4,080 (updated November 2025).
We support our clients in Longueuil with:
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validation of eligibility
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AHRI number compliance
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the preparation of the file
This often tips the decision in favor of a high-efficiency multi-zone system rather than a minimal solution.
Guarantee and peace of mind
Standard configuration:
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Compressor : 10 years
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Parts : 10 years
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Labor : 0 years (extension possible)
Depending on the project, we offer tailored extended warranties , particularly relevant for income properties or long-term owner-occupiers.
For whom is this heat pump really suitable?
This model is particularly relevant if:
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you have several spaces at different temperatures
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You want a scalable system
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You prioritize efficient electric heating
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Your building is located in Longueuil or on the South Shore , with exposed winters
Conversely, for very small areas or a single open space, a different configuration might be more appropriate. This is precisely the type of analysis we conduct before each submission.
Why choose AirGreen for your ELIOS project in Longueuil?
We don't just sell equipment. We deliver a complete HVAC solution , designed to:
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the local climate reality
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the actual use of the building
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long-term sustainability
Our approach is based on transparent pricing , experienced refrigeration technicians , and a strong local presence in Longueuil, Montreal, Laval, North Shore and South Shore.
Contact AirGreen for a precise evaluation of your project
Are you considering installing an ELIOS E-MULTI 2-head 48,000 BTU heat pump in Longueuil ?
Contact AirGreen for a detailed analysis, a clear estimate and complete support, from the subsidy to commissioning.
Telephone : 514-316-2973
Email : sales@airgreen.ca
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 2 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 19 combinations, from 6+24 to 24+36 (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; labour is not included by the manufacturer. 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.