Zephyr R-454B Triple Zone Heat Pump | 24,000 BTU Compressor | Montreal, Laval, Longueuil, South Shore & North Shore
The Zephyr Hi Multi Xtreme R454B 24 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 17,600 BTU/h at −8 °C, heats down to −25 °C and qualifies for a $2,112 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit.
Compared with the 59 multi-zone systems of 24,000 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 3 heads and modulates from 12,870 to 29,100 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 112 % 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 59 multi-zone systems of 24,000 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.
A triple-zone heat pump designed for Quebec: efficient, quiet and of Canadian quality
The perfect solution for uncompromising multi-room comfort: Zephyr TripleZone 24,000 BTU
At AirGreen , we know that the comfort of a Montreal home depends on an HVAC system that can adapt to the extreme conditions of our climate, while meeting performance, quietness, and energy efficiency requirements. That's why we chose to integrate the Zephyr R-454B TripleZone Heat Pump | 24,000 BTU Compressor into our lineup. This model is not just a product: it's a technical response to concrete needs, designed according to our standards and rigorously respecting Canadian quality standards.
Multi-zone technology adapted to local realities
The TripleZone Zephyr allows you to manage three separate zones from a single outdoor compressor. It is compatible with several wall-mounted head configurations, including the ZE09CB25I, ZE12CB25I, ZE18CB25I and ZE24CB25I models , allowing optimal adaptation according to room volumes and building orientation.
Each zone benefits from precise control, reducing energy waste while ensuring tailored thermal comfort . Individual temperature adjustment in each room is essential in multi-story or complex-plan dwellings, as is often found in Longueuil, Laval or on the South Shore .
Energy efficiency and respect for the environment
The R-454B refrigerant used in this model is a responsible choice. It offers excellent performance while reducing environmental impact, with a significantly lower global warming potential (GWP) than traditional refrigerants. Combined with a performance of 23 SEER2 , 12.85 EER2 and 10.0 HSPF2 , the Zephyr model is among the best triple-zone heat pumps in terms of energy efficiency.
This efficiency is ENERGY STAR® certified , including in cold climates ( -25°C in heating), which is crucial for the harsh winters of Montreal or the North Shore .
Exceptional acoustic performance: silence guaranteed
With an outdoor noise level of only 59 dB(A) , the TripleZone Zephyr is one of the quietest heat pumps in its class . This factor is essential for customers living in dense residential areas such as Villeray, Verdun or Boucherville , where noise pollution can become a neighborhood issue.
The indoor units, too, are designed for discreet operation, promoting daily use without interruption or hearing discomfort, even in bedrooms or home offices.
Key technical specifications
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Outdoor model: ZE-527M325
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BTU Cooling: 24,000
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Number of zones: 3 (maximum)
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Minimum heating temperature: -25°C
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Refrigerant: R-454B
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Voltage: 220V
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Dimensions (L x D x H): 37.4 x 33.07 x 13.39 in
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WiFi: Optional
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Sound level (outdoor): 59 dB(A)
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Standard warranty: 10 years (compressor and parts)
A system designed according to our requirements, for Canadian standards
This Zephyr system is not just an imported product. It has been selected and configured according to the strict performance and durability criteria established by AirGreen . Each component is chosen to meet Canadian standards, taking into account frost conditions, electrical voltage variations, and installation constraints in condominiums or single-family homes.
We tested this model in real conditions in several sectors – Vimont, Saint-Hubert, Repentigny , and each time, the results exceeded expectations: temperature stability, controlled energy consumption, and above all, constant comfort, without noise or variation.
Concrete examples of AirGreen achievements
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Laval, Duvernay district: Installation on 3 levels – living room, master bedroom, and finished basement. The client was looking for a quiet system for working from home. The result: no noise complaints, optimal comfort in every room.
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Saint-Lambert, South Shore: Project to replace an old central system with a Zephyr triple zone. Energy gain estimated at 30%, with entitlement to a LogisVert grant of $2,112 .
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Ahuntsic-Cartierville, Montreal: Installation in an intergenerational duplex, allowing each floor to benefit from its own temperature control without interference.
Installation made easy by our team of professionals
We believe that even the best heat pump is nothing without a flawless installation . That's why our certified refrigeration engineers handle every step: thermal assessment, planning, installation, pressure testing, head configuration, system calibration, and customer explanation.
Our clients choose us for:
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Free on-site estimate , without obligation
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Price transparency , before each start of work
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No deposit , you only pay at the end, once 100% satisfied
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Fast after-sales service , thanks to our local teams on the South and North Banks
Why choose AirGreen for your Zephyr TripleZone system?
Because we do more than just sell systems. We advise, install, maintain, and optimize . Each installation is a tailor-made project, designed for you, based on your needs, space constraints, energy-saving goals, and budget.
By choosing the Zephyr 24,000 BTU TripleZone Heat Pump , you are choosing peace of mind, smart comfort , and the support of a local company that understands your climate reality and your requirements.
Contact us today for a free estimate or to discuss your project with an expert. Together, let's build your lasting 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: 17,600 BTU/h at −8 °C, 27,000 at −15 °C.
How many heads can I connect?
Up to 3 on this outdoor unit. This product is configured for 3 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 2 combinations, from 9+9+9 to 9+9+12 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$2,112 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 3893666. 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.