Zephyr R-454B Triple Zone Heat Pump | 36,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore & North Shore
The Zephyr Hi Multi Xtreme R454B 36 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 22,600 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $2,712 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 4 heads and modulates from 14,345 to 33,850 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
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.
Everything we have written about this system.
Powerful and quiet: a triple-zone solution without compromise
The TripleZone Zephyr R-454B 36,000 BTU heat pump: Designed for the comfort of homes in Montreal, Laval, Longueuil, South Shore and North Shore
At AirGreen , we know that indoor comfort is a top priority for our customers. That's why we selected and tested the TripleZone Zephyr R-454B | 36,000 BTU heat pump in real conditions , a multi-zone wall-mounted unit that meets our rigorous requirements and strictly complies with Canadian quality standards .
This heat pump stands out for its energy performance , its remarkable operating silence , and its ability to heat down to -25°C without loss of efficiency. It currently represents one of the most reliable solutions adapted to the Quebec climate for homes seeking independent temperature control in three separate zones .
Multi-zone technology that maximizes comfort
Flexibility is the key to the TripleZone Zephyr system. The 36,000 BTU compressor can be paired with various indoor head configurations:
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9 + 9 + 9
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9 + 9 + 18
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12 + 12 + 12
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Up to 9 + 18 + 18
This adaptability allows it to be perfectly adapted to the layout of each property , whether it is a bungalow, a duplex or a family cottage.
For example, we recently installed a 9 + 12 + 18 model in a Longueuil residence: the client wanted to keep a child's bedroom at a stable temperature at night, reduce the heating in the dining room during the day, and maintain optimal comfort in her basement office. This type of personalized installation is exactly what Zephyr's multi-zone technology allows .
A silent device, even at full power
The outdoor noise level is only 59 dB(A) , which is remarkable for a unit of this capacity. This means that your neighbors will not be disturbed, even at maximum operation at -20°C. This performance is the result of several years of acoustic development carried out by Zephyr.
Our customers in Laval, particularly in high-density areas like Chomedey, appreciate this quiet sound . Many have told us that they can no longer hear the machine running, which is a stark contrast to the older, noisier R-410A models.
Uncompromising performance, even in winter
This model is ENERGY STAR® certified for cold climates , which confirms its ability to heat efficiently down to -25°C . Its classification:
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SEER2 : 22.0
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HSPF2 : 10.0
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EER2 : 12.85
These very high values make it one of the most efficient triple-zone heat pumps in its category , which is all the more relevant in Montreal and on the North Shore where winters are harsh.
An environmentally friendly refrigerant gas: R-454B
R -454B is a new-generation refrigerant with low global warming potential (GWP). It is gradually replacing R-410A with a climate impact reduction of approximately 78% . By choosing this unit, you are adopting an eco-responsible solution, in line with new Canadian federal regulations.
A grant of up to $2,712 with LogisVert
The TripleZone Zephyr heat pump is eligible for the Quebec government's LogisVert program . The maximum grant is $2,712 , which significantly reduces the total installation cost. AirGreen will work with you to complete all the administrative procedures to obtain this financial support.
Main technical data
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Compressor : ZE-536M425
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Total capacity : 36,000 BTU
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Supported zones : 3 (up to 4 maximum)
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Compatible interior models : ZE09CB25I, ZE12CB25I, ZE18CB25I, ZE24CB25I
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Voltage : 220V
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External dimensions (W x D x H) : 37.4 x 41.34 x 13.39 in
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WiFi : Optional
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Warranty : 10 years compressor, 10 years parts (labor extension available)
Why choose AirGreen for your HVAC installation?
We have been installing this model since its market release in 2025, particularly in the following sectors:
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Montreal (Rosemont, Ahuntsic, Villeray)
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Longueuil (Saint-Hubert sector)
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South Shore (Brossard, Saint-Lambert, Varennes)
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North Shore (Terrebonne, Blainville, Sainte-Thérèse)
Our certified technicians take the time to analyze each building, adapt the configuration of the indoor heads and ensure optimal operation, without thermal imbalance between zones . We also provide fast after-sales service , in close collaboration with the official Zephyr distributor in Canada.
Installation at your own pace, with no advance payment
At AirGreen, you only pay at the end of the work , when you are 100% satisfied. No deposit or down payment is required. And before we begin, we provide you with a clear, precise, and hassle-free quote .
Conclusion: a triple zone without compromise, signed Zephyr
The TripleZone Zephyr R-454B 36,000 BTU heat pump is a modern, reliable, and environmentally friendly solution to the needs of Quebec families. Efficient in both heating and cooling, quiet, and compatible with government subsidies, it's the ideal choice for a well-designed home.
Contact us
Need a quote or personalized advice? Contact us by phone at (514) 316-2973 or by email at sales@airgreen.ca .
Or, visit our showroom in Boucherville to see our models on display.
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: 22,600 BTU/h at −8 °C, 36,000 at −15 °C.
How many heads can I connect?
Up to 4 on this outdoor unit. This product is configured for 3 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 10 combinations, from 9+9+9 to 12 + 12 + 18 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$2,712 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 3893671. 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?
Outdoors, 59 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.