MIDEA28 4-Head Heat Pump | Compressor: 36,000 BTU | Montreal, Laval, South Shore and North Shore
The Midea28 36 000 multi-zone heat pump heats and cools 4 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.
4 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.
A high-efficiency multi-zone solution for tailored comfort in every room
In a region as climatically contrasted as Montreal , Laval , the South Shore and the North Shore , intelligent heating and cooling management becomes essential. That's why at AirGreen , we offer the MIDEA28 4-Head heat pump with 36,000 BTU compressor , a multi-zone centralized air conditioning and heating solution ideal for homes wishing to combine energy performance , installation flexibility and independent control by room . This heat pump with inverter technology and R-454B refrigerant is also eligible for a $3,600 LogisVert provincial grant , making it a doubly advantageous option.
A powerful compressor, unprecedented flexibility
MIDEA Multi-Zone Central System: Up to 5 zones precisely managed
The MIDEA28 heat pump , with the MO5HX-H36B-2A outdoor model, is designed to power up to four indoor units simultaneously, with the ability to expand to a fifth zone. With its 36,000 BTUs , it ensures consistent performance even in temperatures as low as -30°C , meeting the harsh winter conditions of the Montreal metropolitan area.
Compatible indoor units offer a wide and precise choice, including:
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MSEHU-H06B-2A (6K BTU),
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MSEHU-H09B-2A (9K BTU),
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MSEHU-H12B-2A (12K BTU),
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MSEHU-H18B-2A (18K BTU),
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MSEHU-H24B-2A (24K BTU),
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and even the MSEHU-H33B-2A (33K BTU) for large rooms.
Customizable combinations to fit all configurations
Among the many configurations available are popular zone combinations such as:
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6+6+9+12 BTU for a well-zoned condo or single-family home,
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9+9+9+9 BTU for medium sized rooms evenly distributed,
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6+6+6+18 BTU to integrate a large living area combined with three bedrooms.
Integrated SynchroConnect technology simplifies installation by enabling automatic synchronization of refrigeration lines and electrical connections, minimizing installation errors.
Key technical data and energy efficiency
Certified energy performance
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SEER2 : 23.0
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HSPF2 : 10.7
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EER2 : 13.0
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ENERGY STAR® rating , including Cold Climate certification
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Eco-friendly refrigerant R-454B , low global warming potential (GWP)
These performances exceed market standards for multi-zone systems and guarantee optimized seasonal efficiency , particularly important for owners who wish to reduce their electricity bill in both winter and summer.
Outdoor unit dimensions
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38.5 x 16.38 x 38.38 inches
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Exterior noise level : 65 dB(A)
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Voltage : 220V
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AHRI Number : 215471463
The exclusive benefits offered by AirGreen
A complete HVAC installation by certified experts
At AirGreen, every multi-zone heat pump installation is carried out by our certified professional refrigeration engineers , with years of experience in the Montreal , Laval , Longueuil , North Shore and South Shore regions. We ensure impeccable installation, whether for century-old homes with high ceilings, modern condos or multiplex buildings.
Solid and transparent guarantees
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Compressor : 12 years
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Parts : 12 years
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Labor : 10 years
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Additional 10-10-10 warranty included free of charge
Our business model is based on trust : no initial deposit, you only pay when you are 100% satisfied .
Free on-site estimate
Our team offers free, no-obligation in-home assessment visits to accurately identify your multi-zone air conditioning needs, assess the condition of your insulation, and plan the optimal installation.
Real Case Studies: MIDEA28 Installations by AirGreen
Project in Sainte-Julie – 2-story family home
In a 2,300 sq. ft. residential property, we installed a 9+9+12+12 BTU configuration to efficiently heat two upstairs bedrooms, a closed office, and an open-concept living room. With this configuration, the owners noticed a 33% reduction on their Hydro-Québec bill in six months.
Light commercial project in Laval
A 1,800 sq. ft. professional office benefited from a 6+6+18+18 BTU system, providing independent air conditioning for the reception area, the two private offices and the meeting room, while limiting noise pollution and respecting the building's power constraints.
Why choose a multi-zone heat pump rather than a traditional system?
Better management of unoccupied rooms
By opting for the MIDEA28 , you heat or air condition only the rooms used , considerably reducing energy consumption while increasing comfort.
Less exterior clutter
A single outdoor compressor for 4 to 5 indoor units = less noise, less visual impact on the facade or balcony.
Compatibility with wall units, ceiling units , cassettes , floor consoles or ducted systems , according to your design and architectural preferences.
LogisVert Grant: up to $3,600 in savings
The MIDEA28 is eligible for Hydro-Québec's LogisVert grant for high-performance heat pumps. This grant is automatically offered to you upon installation by AirGreen and is reduced by the final price . We handle all the administrative procedures.
A heat pump designed for the Quebec climate
Unlike some generic systems, the MIDEA28 was designed to withstand Quebec's extreme winters , with stable operation down to -30°C . Its high-quality compressor, combined with inverter technology, allows it to modulate its power according to demand — reducing wear and tear, operating noise, and maximizing energy efficiency.
Trust AirGreen for lasting comfort
At AirGreen, we believe that the quality of a multi-zone HVAC installation lies not only in the product, but also in the expertise of the team , the transparency of our offers , and the long-term commitment to our customers . We have already installed dozens of MIDEA multi-zone systems in the Rosemont, Brossard, Laval-des-Rapides and Blainville neighborhoods — with lasting results and consistent customer satisfaction.
Contact us today for a free in-home or showroom estimate in Boucherville . The AirGreen team is ready to help you choose the best solution for your comfort, budget, and energy consumption.
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 4 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 28 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?
$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 3627489. 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 20 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 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.