MIDEA28 2-Zone Heat Pump | Compressor: 27,000 BTU | Montreal, Laval, South Shore and North Shore
The Midea28 27 000 multi-zone heat pump heats and cools 2 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.
2 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.
A scalable and efficient solution for multi-zone comfort
At AirGreen , we offer the MIDEA28 2-Zone heat pump to meet the needs of homeowners who want a versatile and efficient HVAC (heating, ventilation and air conditioning) system. With its 27,000 BTU compressor , this unit is specially designed to serve two separate zones, providing comfort adapted to multiple rooms or floors of a property. With a proven heating capacity down to -30°C , the MIDEA28 stands out as a reliable heat pump, even in harsh Quebec winters. Below, we discuss its features, benefits and our concrete feedback in the greater Montreal area, Laval , Longueuil , as well as on the North Shore and South Shore .
Exceptional reliability even below -30°C
One of the MIDEA28 2-Zone heat pump 's major strengths is its ability to maintain high performance when temperatures drop. Equipped with Extreme Heat Inverter technology, it remains operational down to -30°C, which is essential for our Canadian winters. Families on the South Shore or in Montreal can thus maintain a comfortable indoor temperature throughout the year, without having to resort to expensive auxiliary heating.
Furthermore, the design of this heat pump incorporates a more environmentally friendly refrigerant, R-454B , which has a reduced global warming potential compared to older refrigerant gases. Thus, the MIDEA28 meets both sustainability requirements and the need for safe and efficient heating.
Key technical features
-
Outdoor model : MO4HX-H27B-2A
-
AHRI : 215471460
-
ENERGY STAR® (Cold Climate) : Yes
-
Heating capacity : -30°C
-
Cooling Capacity : 27,000 BTU
-
Gas (Freon) : R-454B
-
SEER2 : 23.0
-
HSPF2 : 10.5
-
EER2 : 12.5
-
Zones : 2 Zones (can go up to 4 zones)
-
External Dimensions (W x D x H) : 37.25 in x 16.13 in x 31.88 in
-
Sound Pressure Level (Outdoor) : 61.0 dB(A)
-
Voltage : 220V
-
WiFi : Optional
-
Warranty (Compressor – Parts – Labor) : 12-12-10 years
-
Additional Warranty (10-10-10) : Included
-
Provincial Grant (LogisVert) : $3,000 (Updated: May 1, 2025)
These specifications demonstrate the MIDEA28 heat pump 's ability to accommodate both single-family homes and duplexes or triplexes requiring multi-zone coverage. Its ENERGY STAR® certification also ensures that it operates with good energy efficiency, reducing monthly electricity bills while maintaining optimal comfort.
How Dual Zone Works: A Practical Overview
The MIDEA28 2-Zone heat pump can power two indoor units, each of which can be installed in a different room or floor. This means you can set separate temperatures in different parts of the house. For example, if you want to heat the ground floor more intensely while keeping the upper floor slightly cooler, the MIDEA28 manages these settings independently.
This multi-zone design is particularly useful in properties in Longueuil or the North Shore , where the architectural configuration often includes two floors or a basement. Rather than heating or cooling the entire property uniformly, you can target your actual needs, thus improving overall comfort and reducing energy consumption.
HVAC installation: AirGreen expertise
Our team at AirGreen has extensive experience in HVAC installation and maintenance of heat pumps and air conditioning systems. Installation steps for the MIDEA28 2-Zone heat pump include:
-
On-site assessment : First, we conduct a visit to confirm the best configuration for your space. We analyze the layout of the rooms, the possible placement of the indoor units, and accessibility for the outdoor unit.
-
Choice of indoor units : Depending on the size of the rooms and the level of insulation, we recommend wall-mounted units, mini-consoles or fan coils to precisely meet your comfort requirements.
-
Outdoor Unit Installation : With exterior dimensions of 37.25 x 16.13 x 31.88 in, the MIDEA28 outdoor unit can easily fit into many outdoor spaces or on a balcony, provided the recommended clearances are respected.
-
Connection and commissioning : We then connect the R-454B refrigerant lines and finalize the electrical connections (220V). A complete test is performed to ensure compressor performance, check noise levels, and calibrate the heat pump.
Our expertise ensures fast and reliable installation, minimizing disruptions to your daily life. We also take the time to explain the device's settings, including the option of integrating a Wi-Fi module to control the heat pump from a smartphone.
HVAC Maintenance: Extending the Life of the MIDEA28
Regular HVAC maintenance is essential to maintain the efficiency of your heat pump throughout the seasons. Here are some tips and services we offer:
-
Cleaning Filters : Indoor unit filters should be cleaned or replaced periodically to ensure good air quality and maintain optimal flow.
-
Coil Inspection : The coils in the outdoor unit can accumulate dust or debris. Annual cleaning extends compressor life and improves efficiency.
-
Checking the refrigerant charge : With the new R-454B , it is crucial to maintain the correct pressure to avoid performance losses or possible overheating problems.
-
General Operation Check : Our technicians examine fan speed, automatic regulation between heating and cooling mode, and behavior in multi-zone mode to ensure even temperature distribution.
Annual or biannual preventative maintenance helps detect minor problems early before they become costly breakdowns. Additionally, a well-maintained system uses less energy, resulting in long-term savings.
Customer testimonial: a successful installation in Montreal
We recently installed a MIDEA28 2-Zone heat pump in a duplex on Saint-Hubert Street in Montreal . The client wanted to independently heat and cool the ground floor and upper floor, while reducing their energy bill.
After evaluating the insulation and existing layout, we suggested two wall-mounted indoor units, one in the main living area and the other in the upstairs bedroom. From the first winter season, the owner noticed a significant improvement in comfort and a reduction of approximately 15% in electricity consumption, thanks to the MIDEA28's high SEER2 (23.0) and HSPF2 of 10.5.
Using the multi-zone mode, he adjusted the temperature so that the upper floor remained slightly cooler at night, allowing him to save even more money. As for the air conditioning mode, the customer highlighted the compressor's responsiveness, which allows rooms to be cooled quickly during heat waves.
Example on the South Shore: a two-level condo
Another client, located in Boucherville on the South Shore , called on AirGreen to equip his two-level condo with a reliable and quiet heat pump. Since it was a relatively compact space, the noise level of 61.0 dB(A) in outdoor mode was a decisive argument.
After installation, the customer found they could maintain approximately 22°C on the upper level and nearly 20°C on the lower level, all with a single outdoor unit and two indoor units. Acoustic comfort was found to be excellent, and the heat pump operates in extreme weather conditions without any noticeable performance loss.
Economic and environmental benefits
-
Energy Efficiency : With a SEER2 of 23.0 , the MIDEA28 2-Zone heat pump uses less energy than a standard heat pump. On an annual basis, this efficiency translates into substantial savings.
-
Provincial grants : The LogisVert grant of $3,000 (updated to May 1, 2025) represents significant financial support for those wishing to invest in an ecological and efficient system.
-
Precise temperature control : The multi-zone principle allows you to heat or cool only occupied spaces, thus reducing waste.
-
Reduced carbon footprint : Choosing a heat pump over a traditional heating system significantly reduces the use of fossil fuels and helps reduce greenhouse gas emissions.
Evolution and customization options
Although designed for two zones, the MIDEA28 2-Zone heat pump can be expanded to four zones by adding additional indoor units (models MSEHU-H06B-2A, MSEHU-H09B-2A, MSEHU-H12B-2A or MSEHU-H18B-2A, for example). This allows the system to be adjusted to future changes in your home: basement conversion, addition of an extension, etc.
For those who want even more advanced control, the Wi-Fi option makes it easy to remotely manage temperature and schedule time. For example, you can set up automatic cooling before you arrive home or lower the temperature when you're away.
Proactive maintenance: avoiding unplanned breakdowns
Our experience at AirGreen shows that regular preventative maintenance is key to extending the life of a heat pump. Beyond simply replacing filters, we recommend scheduling an inspection before each heating or cooling season.
During this visit, we carry out specific tests:
-
Checking valves and connections : Detect any micro-leaks of R-454B refrigerant.
-
Heat exchanger test : Ensure there is no evidence of oxidation or premature corrosion.
-
Electronic Check : Review the operation of the control module, multi-zone mode and electrical panel.
This approach avoids sudden service interruptions and ensures that your HVAC system remains optimal throughout the year.
AirGreen: a pledge of confidence throughout Greater Montreal
Whether it's a condo in Longueuil , a duplex in Montreal or a single-family home on the North Shore , we have built a solid reputation thanks to our transparent service and our expertise in HVAC maintenance . Our commitment:
-
No deposits : You pay when you are 100% satisfied.
-
Clear Quotes : We offer free, detailed on-site estimates with no surprises later.
-
Specialized Team : All our technicians are qualified to quickly resolve any problem or question related to heat pumps.
-
Responsive after-sales service : Whether it's for annual maintenance or an adjustment, we are always available.
Extend the protection of your investment
The MIDEA28 2-Zone heat pump is backed by a 12-12-10-year warranty (compressor – parts – labor), with an additional 10-10-10 warranty included. For ultimate peace of mind, AirGreen also offers customized maintenance contracts, ensuring complete monitoring of the compressor, indoor unit, and overall performance.
By signing up for a preventative maintenance program, you'll receive priority during peak demand and benefit from fast service, even during peak winter and summer periods. This way, you can maintain control over your comfort and energy bills without worrying about unpleasant surprises.
Conclusion: a relevant and profitable choice
The MIDEA28 2-Zone heat pump with its 27,000 BTU compressor is ideal for medium-sized homes or multi-story properties in Montreal , Laval , Longueuil , the North Shore and the South Shore . Reliable down to -30°C, ENERGY STAR (Cold Climate) certified and equipped with a more environmentally friendly refrigerant, it offers superior performance, quiet operation and true comfort in two zones.
By combining this heat pump with our expertise in HVAC installation and maintenance , you maximize your energy savings and extend the life of your equipment. In addition, the provincial grant and extended warranty make your investment even more advantageous.
Do not hesitate to contact us for further information, a free on-site estimate or personalized advice.
Looking to optimize your home's comfort and reduce your energy bills? Contact us today at AirGreen for a personalized quote and discover how the MIDEA28 heat pump can transform your heating and cooling experience.
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 2 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 13 combinations, from 6+6 to 18+18 (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 3627486. 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 20 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 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.