MIDEA28 Triple Zone Heat Pump | Compressor: 18,000 BTU | Montreal, Laval, South Shore and North Shore
The Midea28 18 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 20,000 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $2,400 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit.
Compared with the 48 multi-zone systems of 18,000 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 5,700 to 20,000 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 105 % 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 48 multi-zone systems of 18,000 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.
An ideal triple-zone solution for tailored comfort throughout the home
In the residential heating and cooling industry, versatility has become a key criterion. At AirGreen, we understand how different needs can be from room to room, which is why we recommend solutions like the MIDEA28 TripleZone heat pump , a smart 18,000 BTU compressor model that combines performance, efficiency, and personalized comfort.
A heat pump for three separate zones
The main advantage of a multi-zone system like the MIDEA28 lies in its ability to independently cool or heat three spaces. Whether you want to keep your bedroom cool at night, keep your living room cool during the day, or heat a basement office, this model meets these requirements.
The available TripleZone configuration includes the following combinations:
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6+6+6
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6+6+9
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6+9+9
These options allow the power of each indoor unit to be adapted to the size of the rooms concerned, thus optimizing energy consumption.
A state-of-the-art compressor
The 18,000 BTU compressor model MO3HX-H18B-2A is the heart of the system. Equipped with inverter technology , it regulates its power in real time according to the thermal needs of the connected rooms, thus ensuring minimal consumption and a constant temperature.
Main technical characteristics:
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Heating capacity: up to -30°C
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Refrigerant gas: R-454B , environmentally friendly
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SEER2: 25.0 | HSPF2: 10.4 | EER2: 15.0
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ENERGY STAR®: Yes, including the Cold Climate label
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Exterior noise level: 62 dB(A)
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External dimensions: 37.25 x 16.13 x 31.88 in
A significant grant thanks to the LogisVert program
Homeowners located in Montreal, Laval, Longueuil, the South Shore, and the North Shore can benefit from a $2,112 grant through Hydro-Québec's LogisVert program (updated May 1, 2025). One more reason to opt for a quality, environmentally friendly, and efficient installation.
Exemplary flexibility for installations
This heat pump is compatible with various wall-mounted indoor unit models (including the MSEHU-H06B-2A, H09B-2A, and H12B-2A), allowing you to choose the unit best suited to each space. Additionally, the system can be equipped with optional Wi-Fi for smart control via a mobile app.
Feedback: Installation in Laval
Recently, our teams installed a MIDEA28 TripleZone heat pump in a single-family home in Laval. The goal was to provide optimal comfort in the master bedroom (6,000 BTU), living room (9,000 BTU), and basement (6,000 BTU). The installation was completed in one day. The client now appreciates the temperature stability in each zone, with consumption reduced by more than 20% compared to their previous central system.
Exceptional guarantee and price transparency
At AirGreen, we leave nothing to chance. The MIDEA28 TripleZone heat pump comes with a 12-year warranty on the compressor , 12 years on parts , and 10 years on labor . Plus, no deposit is required when ordering : you only pay once you are fully satisfied with the installation.
Why trust AirGreen?
Our teams of certified refrigeration engineers operate throughout Greater Montreal, whether on the North Shore , the South Shore , in Montreal , Laval or Longueuil . Each project is unique and receives personalized attention, with a free on-site quote , in-depth technical expertise , and responsive after-sales service .
Better understand the benefits of R-454B
The choice of R-454B as a refrigerant is not insignificant. This gas has a much lower global warming potential (GWP) than traditional refrigerants like R-410A. It is therefore both a responsible and forward-looking choice. It is also recognized for its superior energy efficiency in cold climates like Quebec's.
Additional technical data of the MO3HX-H18B-2A compressor
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AHRI: 215471457
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Voltage: 220V / single-phase / 60 Hz
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Gross Weight: 148 lbs
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SynchroConnect technology: self-synchronizes connections even if the lines are reversed
This feature makes the work of our certified installers much easier.
Conclusion
The MIDEA28 TripleZone heat pump is the perfect option for homeowners looking to maximize the comfort of three separate zones while reducing their energy consumption . With AirGreen, you'll benefit from professional installation, complete transparency, and advice tailored to your needs.
Contact us today for a free in-home estimate in Montreal, Laval, Longueuil, on the South Shore or the North Shore.
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: 20,000 BTU/h at −8 °C, 19,000 at −15 °C and 10,000 at −30 °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 3 combinations, from 6+6+6 to 6+9+9 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$2,400 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 3627483. 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 10,000 BTU/h with a COP of 1.3.
Is it noisy?
Indoors, the reference head goes down to 20 dB(A). Outdoors, 62 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 12 years on the compressor and 12 years on parts; labour is not included by the manufacturer. AirGreen extended warranty: included.
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.