Installation of a Gree wall-mounted heat pump in LaSalle
Installation of a Gree wall-mounted heat pump in LaSalle by AirGreen: R-32 performance, elegant integration and optimal comfort for a renovated living room in Montreal and its surrounding areas.
Take a tour of the installation
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.
Tailor-made comfort for a modernized living room: our Gree heat pump installation in LaSalle
In this charming residence in the LaSalle district, our teams recently installed a Gree wall-mounted heat pump , a heating and air conditioning solution perfectly suited to Montreal living spaces. The project was part of a complete renovation of the ground floor , combining modernity, energy efficiency and aesthetic discretion.
A typically Montreal interior environment
The living room decor perfectly reflects the style of LaSalle homes: exposed brick walls , parquet floors , and an open layout that creates a warm atmosphere. The main challenge was to harmoniously integrate the heat pump's interior head while optimizing its energy efficiency.
We chose a Gree wall-mounted unit (R32 series), known for its high efficiency in heating mode down to −25°C and its quiet operation —ideal features for the harsh winters of Greater Montreal.
Technical details of the installation
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Machine type : single-zone wall-mounted heat pump
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Brand : Gree
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Model : R32 range (new energy-efficient generation)
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Capacity : 12,000 BTU
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Installation type : gravity wall (gravity drainage)
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Length of ducts : approximately 3.5 m with black casing matching the decor
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Location : Central wall of the living room, facing the main living area
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Installation height : 2.20 m for optimal air diffusion
The indoor unit was carefully fixed to the newly renovated wall, with the refrigerant lines running through a discreet black duct , blending perfectly with the structure of the lowered ceiling. The electrical wiring was concealed to preserve the visual cleanliness of the project.
Careful integration into a double-textured space
This living room had an architectural feature : one half of the wall was textured brick , the other half a smooth painted surface . The AirGreen team therefore adapted the positioning and trajectory of the hood to avoid any interference with the wall reliefs and the existing fireplace mantelpiece. This approach ensures even air diffusion throughout the space, without disrupting the natural circulation of heat.
Certified energy efficiency
Gree R32 heat pumps are designed to maximize efficiency while reducing the carbon footprint . Using R-32 refrigerant , which is more environmentally friendly than R-410A, and advanced inverter technology , this system allows our customers to achieve substantial energy savings while enjoying consistent comfort, summer and winter.
In addition, this type of equipment is eligible for several Quebec grant programs , particularly for its efficiency at low temperatures.
Comfort and tranquility guaranteed
The chosen model is distinguished by:
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A noise level below 21 dB(A) in standby mode, ideal for relaxation areas.
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Adjustable directional airflow for personalized comfort.
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An intuitive remote control and Wi-Fi compatibility for smart remote control.
The result? Uniform thermal comfort , reduced consumption , and impeccable aesthetic integration in the heart of the living room.
AirGreen know-how at every stage
At AirGreen , we place the utmost importance on the planning and technical precision of each installation. Before installation, our technicians assessed:
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the best airflow orientation to avoid cold areas;
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the optimal distance between the indoor head and the outdoor unit ;
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and the safety of the passage of refrigerant lines in an inhabited residential environment.
Every step, from initial drilling to final calibration , was executed according to the strictest standards in the HVAC industry.
A facility ready for all seasons
This Gree R32 heat pump will offer this LaSalle family:
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reliable warmth during extreme cold;
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constant freshness during summer heat waves;
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and a significant reduction in the annual energy bill .
The system is now ready to operate in all seasons, ensuring stable comfort and optimal efficiency .
In conclusion
This project in LaSalle perfectly illustrates our commitment: to provide high-performance, aesthetic and sustainable HVAC solutions , adapted to the realities of Montreal homes. The combination of AirGreen expertise and Gree technology ensures our customers a long-term investment in their comfort and energy efficiency.
The big day, step by step
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 would it look like 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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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).