CANAIR 4C28 Heat Pump - R454B | 3-Zone - 36,000 BTU Outdoor
The CanAir 4C28 R454B 36 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 38,000 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $4,560 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit.
Compared with the 141 multi-zone systems of 36,000 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 5 heads and modulates from 10,000 to 38,000 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 100 % 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 141 multi-zone systems of 36,000 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.
The new benchmark for multi-zone comfort in Quebec
At AirGreen , we believe that an HVAC system isn't just about heating or cooling a home—it's about creating a stable, healthy, and comfortable living environment , regardless of outdoor conditions. The CANAIR 4C28 - R454B | 3-Zone - 36,000 BTU Outdoor Heat Pump perfectly embodies this vision. Designed and manufactured for Quebec's climate, it combines power, durability, smart technology, and eco-performance , in a multi-zone configuration capable of adapting to every style of residence.
Cutting-edge inverter technology for constant comfort
The CANAIR 4C28 series is based on Inverter technology , a major innovation allowing precise control of the compressor according to the actual temperature demand. This dynamic approach allows the heat pump power to be adjusted instantly to maintain a stable temperature and reduce energy consumption to a strict minimum.
Concrete benefits for your comfort and your wallet:
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Significant energy savings : the heat pump consumes less electricity than a traditional system, because it never starts at full power unnecessarily.
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Stable and even temperature : no more sudden changes in heat or cold; the room maintains constant comfort throughout the day.
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Quiet operation : Thanks to its sophisticated mechanical design, the 4C28 is almost invisible, even when fully loaded.
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Increased durability : The inverter compressor undergoes fewer stop-start cycles, extending the life of the unit.
This combination of efficiency and precision makes the CANAIR 4C28 ideal for Quebec's harsh winters, capable of reaching -30°C without compromising performance.
A heat pump designed for the Quebec climate
Designed specifically for northern conditions, the CANAIR 4C28 excels where other systems falter. Its Cold Climate V6.1 certification ensures stable performance even in extreme cold, while its next-generation R-454B refrigerant significantly reduces environmental impact while maintaining exceptional heating capacity.
The 3-Zone – 36,000 BTU model was designed for family residences, modern duplexes, or commercial offices requiring uniform coverage across multiple floors. Each interior zone operates independently, allowing the temperature to be adjusted as needed:
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A living room that is always at the right temperature , whatever the season;
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Quiet and comfortable rooms at night ;
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A temperate basement even during the most intense cold spells.
This flexibility makes the 4C28 series a perfect solution for owners looking for balanced and intelligent comfort.
Multi-zone power: one unit, three perfectly balanced zones
With its 3-Zone – 36,000 BTU configuration, the CANAIR 4C28 offers rarely equaled power and modularity. The outdoor unit manages several indoor units autonomously, constantly adjusting the airflow and compressor power.
This multi-zone system ensures:
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Tailor-made comfort in every room, without loss of energy efficiency;
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Reduced heating costs thanks to optimized temperature regulation;
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Complete adaptability to everyday needs: bedroom, living room, office, basement or workshop.
With an efficiency of 23 SEER2 , an HSPF2 of 10.7 and a heating capacity maintained down to -30°C , this heat pump is among the most efficient in its category.
Features that make all the difference
1. Turbo Mode
Engage Turbo Mode to reach your desired temperature in record time, whether you want to cool down quickly after a hot day or warm up your home in the middle of winter.
2. Self-cleaning function
The system automatically cleans the indoor and outdoor coils , preventing the formation of mold and unpleasant odors. This process extends the life of the unit and maintains impeccable air quality.
3. “Follow Me” function
Thanks to a sensor integrated into the remote control, the temperature is regulated based on your actual position in the room — for targeted, intelligent comfort.
4. Prevention of cold draft
When starting in heating mode, the heat pump prevents unpleasant cold air from blowing in. You benefit from gentle, immediate heat as soon as it is switched on.
5. Optional WiFi control
Control your system remotely via your phone or tablet. Ideal for coming home to a warm house or adjusting settings while you're away.
6. Automatic restart
In the event of a power outage, the 4C28 automatically restarts with the previously saved settings—no adjustments required.
7. Integrated heating cables
These cables prevent ice from forming around the compressor and the base of the outdoor unit, ensuring stable performance even during the worst winter storms.
8. Ultra-quiet operation
With a noise level of only 65 dB(A) , the CANAIR 4C28 remains discreet, even when operating at full capacity. This quiet operation is particularly appreciated in residential areas and condominiums.
A reliable and durable system: guaranteed for up to 10 years
Choosing the CANAIR 4C28 means investing in a product backed by one of the strongest warranties in the industry :
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10 years on the compressor ;
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10 years on parts ;
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10-year labor option .
This comprehensive warranty reflects the confidence that AirGreen and Canair place in the manufacturing quality of the product and in the know-how of our approved installers .
AirGreen Professional Installation: Excellence at Every Step
Installing a high-performance heat pump like the CANAIR 4C28 requires impeccable technical expertise.
At AirGreen , every project receives a free on-site assessment to determine the ideal configuration for your home. We analyze room layout, insulation, electrical constraints, and energy needs before any installation.
Our commitments:
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No advance or deposit : you only pay when everything is working perfectly.
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Total transparency : a clear final price before work begins.
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Fast after-sales service : priority intervention if needed.
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RBQ certified technicians : a guarantee of reliability and safety.
Concrete example: in Chomedey, Laval , the owner of a 1980s bungalow opted for the CANAIR 4C28 – 36,000 BTU. The installation, carried out in one day, reduced the annual electricity bill by almost 40% , while improving the temperature and air quality in each room.
An ecological and responsible solution
Adopting the CANAIR 4C28 also means making an environmentally friendly choice.
Its R-454B refrigerant offers a global warming potential (GWP) 78% lower than R-410A. By harnessing Quebec's clean, renewable electricity , the heat pump directly contributes to reducing greenhouse gas emissions and supporting the provincial energy transition .
This ecological system allows:
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Reduce dependence on natural gas or fuel oil;
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Reduce your carbon footprint without sacrificing performance;
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Promote a sustainable lifestyle aligned with Quebec's climate objectives.
Canair and AirGreen: a 100% Quebec partnership
CANAIR , proudly distributed by DesCair , is a Quebec family business founded in 1971, specializing in the design of HVAC systems adapted to the local climate.
At AirGreen , we share these values: innovation, reliability and local service . Together, we are committed to offering heat pumps capable of withstanding the coldest winters while providing exceptional comfort, summer and winter.
Every AirGreen installation reflects our commitment to quality, sustainability and customer satisfaction .
Full technical sheet
| Characteristic | Detail |
|---|---|
| Heating capacity | 36,000 BTU |
| Air conditioning capacity | 36,000 BTU |
| Technology | Inverter |
| Refrigerant | R-454B (A2L) |
| Energy efficiency | SEER2 23.0 / HSPF2 10.7 / EER2 13.0 |
| Minimum operating temperature | -30°C |
| Food | 220V |
| Sound level (outdoor) | 65 dB(A) |
| Number of zones | 3 (up to 5 possible) |
| WiFi | Optional |
| Guarantee | 10 years parts / 10 years compressor / optional 10 years labor |
| External dimensions (L x W x H) | 38.58 x 16.34 x 38.39 in |
Why choose AirGreen for your HVAC project?
Because beyond the product, it is the quality of the installation and service that guarantees performance. At AirGreen , we ensure:
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Neat installations complying with RBQ standards (#5645-9605-01);
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Personalized advice to help you choose the right model for your home;
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A human and transparent approach , without jargon or unpleasant surprises;
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Complete support , from choice to maintenance.
We cover all of Greater Montreal , including Laval, Longueuil, the North Shore and the South Shore , with the same promise: a stress-free experience and lasting comfort .
Ready to make the leap to CANAIR performance?
Call us today to schedule your free on-site evaluation and discover how the CANAIR 4C28 Heat Pump - R454B | 3-Zone - 36,000 BTU Outdoor can transform the comfort of your home.
📞 514-316-2973
📧 sales@airgreen.ca
📍 Montreal | Laval | Longueuil | North Shore | South Shore
AirGreen — We install performance, we guarantee comfort.
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: 38,000 BTU/h at −8 °C, 36,000 at −15 °C and 22,400 at −30 °C.
How many heads can I connect?
Up to 5 on this outdoor unit. This product is configured for 3 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 28 combinations, from 6+6+12 to 18+18+18 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$4,560 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 3712089. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −30 °C. At −30 °C, it still delivers 22,400 BTU/h with a COP of 1.47.
Is it noisy?
Indoors, the reference head goes down to 19.5 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.