CANAIR 4C28 Heat Pump - R454B | 4-Zone - 27,000 BTU Outdoor
The CanAir 4C28 R454B 27 000 multi-zone heat pump heats and cools 4 rooms with a single outdoor unit. it delivers 30,000 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $3,600 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
4 rooms, one outdoor unit, and the most powerful in its class at −8 °C.
Compared with the 26 multi-zone systems of 27,000 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 4 heads and modulates from 8,400 to 30,000 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 26 multi-zone systems of 27,000 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 ultimate Quebec heat pump: power, versatility and lasting comfort
At AirGreen , we know that in Quebec, indoor comfort can't be left to chance. Between bitter winters at -30°C and increasingly hot summers, your heating and cooling system must be able to adapt to everything. That's why we offer the CANAIR 4C28 - R454B | 4-Zone - 27,000 BTU Outdoor heat pump , a high-performance wall-mounted system designed for the Quebec climate . This model combines cutting-edge technology, energy efficiency, durability and optimal comfort , while respecting the environment.
A system designed for the Quebec climate
The CANAIR 4C28 series is the result of proven Quebec know-how and a constant search for performance. Thanks to Inverter technology , the heat pump adjusts the compressor frequency according to demand, which helps maintain a stable and pleasant temperature while reducing energy consumption.
What this means for you:
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Constant comfort : the interior temperature remains stable, without sudden variations.
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Significant energy savings : Inverter technology optimizes compressor operation, avoiding frequent start-up cycles.
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Reliable heating down to -30°C , perfect for the harshest Quebec winters.
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Fast and precise cooling during periods of intense heat.
Thanks to its R-454B refrigerant gas , more ecological and less polluting than old gases, the CANAIR 4C28 contributes directly to reducing your environmental footprint while offering remarkable energy efficiency.
Energy efficiency and substantial savings
The CANAIR 4C28 ranks among the most efficient models in its class. With a SEER2 of 23.0 , a HSPF2 of 10.5 and an EER2 of 12.5 , it maximizes every watt of electricity consumed to produce stable heat and evenly cool air.
In other words: more comfort, less energy expenditure .
In practice, this often translates into a 30-40% reduction in annual energy costs , compared to a conventional oil or gas system.
This exceptional performance is also recognized by the ENERGY STAR® Cold Climate certification , a standard guaranteeing that the heat pump is specially designed for northern climates.
Multi-zone system: personalized comfort in every room
The CANAIR 4C28 - 4 Zones - 27,000 BTU stands out for its ability to serve up to four separate zones . Each room in the house can be set to the ideal temperature according to your needs.
You can, for example:
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Keep the bedroom at 21°C for restful sleep,
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Keep the living room at a slightly warmer temperature for winter evenings,
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Cool the kitchen during meals,
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And keep the office at a stable temperature to work comfortably.
This independent zone management allows intelligent use of energy , by heating or cooling only the spaces actually used.
Compatible indoor units include several power ratings: 6,000, 9,000, 12,000, 18,000 and 24,000 BTU , allowing total flexibility depending on the size and use of each room.
Quiet performance and long-lasting reliability
One of the most impressive aspects of the CANAIR 4C28 is its ultra-quiet operation . With an outdoor noise level of just 61 dB(A) , this system fits perfectly into residential environments. You can install it near a terrace, balcony or window without worrying about noise.
Additionally, every component has been designed for longevity :
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TU1 copper coil : high corrosion resistance, guaranteeing superior durability.
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Built-in heating cables : prevent ice from forming on the outdoor unit, even during winter storms.
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Self-cleaning function : prevents the build-up of moisture and mold, extending the life of the system.
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“Follow Me” function : adjusts the temperature according to the position of the remote control, for personalized comfort.
These features ensure worry-free use , season after season, with minimal maintenance.
Technology and integrated intelligence
The CANAIR 4C28 heat pump is equipped with intelligent technology designed to simplify your daily life.
With the Wi-Fi option, you can control your home's temperature remotely from your smartphone. Whether you're at the office or traveling, all it takes is an app to adjust the temperature before you return.
Key functions:
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Turbo mode : to quickly reach the desired temperature.
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Silent Mode : Ideal for nighttime or relaxing moments.
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Automatic restart : the device retains its settings in the event of a power failure.
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Cold draft prevention : immediate comfort from the moment you start heating mode.
In short, everything is designed so that you can enjoy optimal comfort without effort.
Professional installation by AirGreen: expertise and transparency
Choosing AirGreen means choosing a trusted partner for the installation, maintenance and after-sales service of your HVAC system.
Our RBQ certified technicians, specialized in multi-zone wall systems, ensure a rigorous and aesthetic installation , compliant with Quebec standards.
Our commitments:
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Free on-site assessment : an advisor will come to your home to analyze your needs.
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100% transparent pricing before work begins : no surprises at the end of the project.
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No deposit required : you only pay once the work is completed and your satisfaction is guaranteed.
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Fast and courteous after-sales service , with technicians based in Montreal, Laval, Longueuil, the South Shore and the North Shore .
We believe in a customer-centric approach: the right product, the right installation, the right service .
Exceptional warranty: peace of mind for years
The CANAIR 4C28 series stands out with one of the best warranties on the market.
You benefit from:
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10 years on the compressor ,
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10 years on parts ,
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6 years on labor, straight from the distributor. It is also possible to extend the labor warranty up to 10 years through the additional warranty.
This comprehensive coverage demonstrates the manufacturer's confidence and our commitment to durability and customer satisfaction.
Environmental respect and available subsidies
Choosing the CANAIR 4C28 also means doing something for the planet.
Operating exclusively on electricity , this heat pump produces significantly fewer greenhouse gas emissions than natural gas or oil systems. Its A2L-rated R-454B refrigerant further reduces environmental impact while delivering remarkable thermal efficiency.
In addition, the provincial LogisVert grant allows you to benefit from up to $3,000 in financial assistance for the installation of this energy-efficient system. A great way to invest in lasting comfort while reducing the acquisition cost.
Main technical specifications
| Features | Details |
|---|---|
| Cooling capacity | 27,000 BTU |
| Heating capacity | Up to -30°C |
| SEER2 | 23.0 |
| HSPF2 | 10.5 |
| EER2 | 12.5 |
| Tension | 220V |
| Refrigerant gas | R-454B |
| Outdoor noise level | 61.0 dB(A) |
| Wi-Fi compatibility | Optional |
| Warranty (Compressor / Parts) | 10 years / 10 years |
| Labor Warranty (included, from the distributor) | 6 years (extendable to 10 years) |
Case study: optimized comfort in Laval-des-Rapides
In a residence in Laval-des-Rapides , a family replaced their old central gas system with a CANAIR 4C28 Quad Zone installed by AirGreen .
Result :
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35% reduction in annual electricity bill ,
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Stable temperature even at -27°C ,
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Almost inaudible operation ,
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Tailor-made comfort thanks to independent management of each zone.
The addition of the Wi-Fi module allowed the owner to manage the temperature remotely, further improving energy efficiency and family comfort.
Why trust AirGreen
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100% Quebec company , firmly established in Montreal.
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Team of HVAC experts , trained in new energy technologies.
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Over 1,000 successful installations in the greater metropolitan area.
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Complete support , from product choice to periodic maintenance.
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Commitment to quality, sustainability and customer satisfaction.
At AirGreen, we don't just sell HVAC systems: we offer smart, sustainable comfort solutions that fit your lifestyle and your home.
Conclusion: a heat pump designed for the future
The CANAIR 4C28 - R454B | 4-Zones - 27,000 BTU Outdoor represents the new generation of wall-mounted heat pumps designed for the needs of modern Quebec.
Eco-friendly, quiet, efficient and backed by an exceptional warranty, it is the preferred choice for anyone looking for long-lasting, energy-efficient comfort .
📞 Request your free estimate today
Contact AirGreen Heat Pumps, Air Conditioning & Heating now:
📍 Montreal: 4951 Ste-Catherine Street East
📍 South Shore (Showroom): 1370 rue Joliot-Curie, Boucherville
📞 514-316-2973
📧 sales@airgreen.ca
Take advantage of a free on-site evaluation , guaranteed professional service , and discover why AirGreen is the HVAC reference in Montreal, Laval, Longueuil, on the North Shore and the South Shore.
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: 30,000 BTU/h at −8 °C, 27,000 at −15 °C and 14,000 at −30 °C.
How many heads can I connect?
Up to 4 on this outdoor unit. This product is configured for 4 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 15 combinations, from 6+6+6+6 to 12+12+12+12 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$3,600 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 3712087. 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 14,000 BTU/h with a COP of 1.26.
Is it noisy?
Indoors, the reference head goes down to 19.5 dB(A). Outdoors, 61 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.