Installation of a Midea wall-mounted heat pump in Rosemont–La Petite-Patrie
AirGreen installed a Midea wall-mounted heat pump in Rosemont–La Petite-Patrie. A complete HVAC installation for optimal comfort, energy savings, and access to grants in Montreal, Laval, Longueuil, the North Shore, and the South Shore.
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A custom HVAC installation project for optimal comfort in a Rosemont home
At AirGreen , we regularly work in Montreal homes where thermal comfort is a priority. In this project, our team installed a Midea wall-mounted heat pump in a residence located in Rosemont–La Petite-Patrie . The client's goal was clear: to obtain an efficient system for cooling in the summer and heating in the winter, while benefiting from reduced energy consumption and lasting comfort.
Installation context
The house, typical of the neighborhood with its renovated finishes, had several rooms to serve, including a bathroom adjoining the hallway where we installed the indoor unit. The space available above the door proved ideal for a compact wall installation , allowing for maximum air diffusion without encroaching on the existing layout.
The choice of a Midea wall-mounted heat pump was obvious due to its advantages:
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Inverter technology guaranteeing precise power modulation.
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Reliable operation down to -25°C , suitable for Montreal winters.
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Energy Star certification, qualifying for provincial subsidies (LogisVert, Hydro-Québec).
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Reduced noise levels, perfectly suited for use in living spaces.
Installation steps by our team
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Space analysis : taking measurements and checking refrigeration pipe passages.
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Controlled drilling : wall crossing with aesthetic capping matching the interior finish.
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Wall unit installation : fixed at the optimal height, just above the door frame, to ensure even air circulation.
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Pipe installation : insulated and protected refrigerant connection, routed to the external compressor via a discreet passage.
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Electrical connection : connection to the existing panel with dedicated circuit breaker, in accordance with RBQ standards.
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Commissioning : pressure checks, heating and air conditioning tests, full explanations to the customer.
Constraints and solutions provided
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Limited height : The space available above the door required a perfectly calibrated installation. Our technicians adjusted the wall bracket to optimize the height while ensuring efficient airflow.
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Adjoining bathroom : to avoid excessive condensation, particular care has been taken with the orientation of the shutter and the management of condensate (gravity drainage).
Results obtained
The client now benefits from a reliable, quiet, and economical system. Air is distributed evenly throughout the hallway and adjoining bathroom, significantly improving comfort. Thanks to this installation, the family enjoys a pleasant indoor climate all year round, with the peace of mind of having durable, well-installed equipment.
Recommended maintenance and follow-up
At AirGreen, we always remind you of the importance of regular HVAC maintenance :
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Clean the filter every 2 to 3 months.
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Annual inspection by a certified technician.
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Inspect the condensate drain to prevent leaks.
These simple actions guarantee the performance of the Midea heat pump and extend its lifespan.
AirGreen: your HVAC partner in Greater Montreal
By choosing AirGreen, the Rosemont client benefited from a turnkey service : personalized advice, impeccable installation, grant procedures and after-sales follow-up. Whether you are in Montreal, Laval, Longueuil, on the North Shore or the South Shore , our team is ready to assist you in all your wall-mounted heat pump and HVAC system installation projects.
The job tools
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
How the job unfolds
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).