Installation of a Gree wall-mounted heat pump in Southwest Montreal
In a condo undergoing renovation in the Southwest, we installed a Gree wall-mounted heat pump on a central wall in the open-concept kitchen-living room. The result: a discreet, quiet, and highly efficient system for heating and cooling the main living area year-round, without compromising the contemporary design of the space.

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.
In this modern condo in Southwest Montreal , nearing completion, the owners wanted a high-performance heating and cooling solution that seamlessly integrated with their new décor. The main living area is an open-concept kitchen and living room with smooth ceilings, recessed LED lighting, and contemporary dark furnishings.
To meet these requirements for comfort and aesthetics, we installed a high-efficiency Gree wall-mounted heat pump , designed to offer four-season comfort while blending discreetly into the decor.
An open-plan space with demanding needs
Open areas like this one always present the same challenge:
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large volumes to be air-conditioned;
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multiple heat sources (kitchen, appliances, large windows);
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a need for a uniform temperature, without excessively hot areas or drafts.
The homeowners wanted to be able to enjoy their kitchen and living room year-round, without excessive noise or large, visible appliances that would disrupt the clean aesthetic of the space. A Gree wall-mounted heat pump was the ideal solution.
A perfectly sized Gree wall-mounted heat pump
We opted for a new-generation Gree wall-mounted unit , approximately 12,000 BTU, equipped with inverter technology. This type of heat pump:
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continuously modulates its power according to the actual needs of the room;
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maintains a stable temperature without sudden variations;
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reduces electricity consumption compared to a traditional air conditioner or electric baseboard heaters used alone;
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ensures a very low noise level, particularly appreciated in an open area where people cook, work and entertain guests.
Thanks to this heat pump, the main area of the condo now benefits from efficient air conditioning and heating, without oversizing or loss of performance.
Strategic positioning on a central partition
The photo shows the Gree indoor unit mounted high up in the center of a clear white wall. This positioning was carefully chosen:
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The high ceilings allow the blown air to be widely distributed in the living room and towards the kitchen.
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The central position provides uniform diffusion, avoiding areas that are too cold near the unit and areas that are too hot at the periphery.
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The chosen wall is clear of any obstruction (cabinets, television, structural column), which ensures optimal airflow.
The technical openings, located above the unit, allow the refrigeration lines, communication cabling, and power supply to be routed directly to the rear of the wall, minimizing visible conduits. Once finished, the overall result will be very clean and streamlined.
Integration into a contemporary design
One of the main objectives of this Southwest project was to integrate the heat pump into the interior design :
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The Gree wall unit, white with rounded lines, blends into the wall and interacts well with the smooth ceiling and recessed LEDs.
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The choice of wall and installation height make it minimally intrusive in the field of vision, while remaining easily accessible for filter maintenance.
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No furniture or television is placed under the unit, which avoids conflicts between comfort and layout.
The result: a high-performance HVAC system, but visually discreet, perfectly in line with the minimalist style of the black kitchen and modern finishes.
Four-season comfort in Montreal's climate
With this Gree wall-mounted heat pump , the occupants now benefit from:
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In summer , rapid air conditioning of the open area, even during the heat waves and humidity typical of Montreal;
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In spring and autumn , gentle and constant heating is ideal for avoiding the need to start up more energy-intensive backup systems;
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In winter , it provides support to the main heating system, which helps to stabilize the temperature in the central living area and reduce the electricity bill.
Humidity management, integrated filtration and the different modes (night, eco, dehumidification) also significantly improve air quality and daily comfort.
AirGreen support in the Southwest
In this project, our role was not limited to establishing a unified structure:
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We analyzed the volumes and orientation of the open area to propose the correct BTU capacity;
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We advised on the optimal positioning of the Gree wall-mounted head according to the future layout;
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We coordinated the dedicated power supply and the routing of connections to the outdoor unit;
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We have adjusted the commissioning to ensure quiet operation and maximum performance.
Whether you are in the middle of a condo renovation in the Southwest or elsewhere in Greater Montreal, we can guide you to the best Gree solution for your project.
Conclusion: a Gree heat pump that's easy to forget... except for its comfort.
This Gree wall-mounted heat pump installation in Southwest Montreal perfectly illustrates what we love to achieve: a residential HVAC system that is efficient, economical, and seamlessly integrated into the aesthetics of a contemporary interior. The unit blends into the decor, but its impact is felt at every moment: stable temperature, healthier air, and year-round comfort in the main living area.
If you are planning a renovation or the fitting out of a condo in the Southwest or elsewhere in the region, our team is here to design and install a Gree solution tailored to your space and lifestyle.
How it goes, from the first call to the end
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.
And at your place?
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.
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.
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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?
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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).
