Installation of a Gree wall-mounted heat pump in Brossard
In Brossard, our team installed a Gree wall-mounted heat pump with a raised outdoor unit, seamlessly integrated into the landscaping beneath a deck. This configuration ensures excellent winter performance, quiet operation, and significant energy savings for the homeowners.

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.
In Brossard, on Montreal's South Shore, the owners of this single-family home wanted to upgrade their heating and air conditioning system. Their goal: to enjoy year-round comfort while reducing their electricity bill. They chose to have a Gree wall-mounted heat pump installed by our team.
Context: a suburban house with a landscaped backyard
The house is typical of Brossard:
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exterior cladding in masonry and plaster;
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raised terrace at the rear;
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landscaping with rock garden, slabs and mature hedges;
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Steel fence to secure access to the property.
The owners make extensive use of their backyard and wanted an efficient yet discreet installation that would not spoil the aesthetics of the garden or the access under the deck for maintenance.
Choosing the Gree wall-mounted heat pump
We recommended a Gree Inverter wall-mounted, single-zone heat pump , ideal for supplying the main living area of the house (open-plan living room and kitchen).
Why Gree for this Brossard residence?
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Inverter technology : the compressor continuously modulates to provide just the right amount of power, reducing sudden starts, noise and consumption.
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Great heating comfort : the Gree heat pump is designed to maintain good heating capacity even during the intense cold we experience in Montérégie.
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Excellent energy performance : the seasonal ratio (SEER/HSPF) allows for substantial savings compared to electric heating alone.
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Reliability and parts availability : the Gree brand is well established in Quebec, which facilitates after-sales service, maintenance and repairs if necessary.
Inside, a compact wall-mounted unit was installed in the main living area, positioned to circulate air towards the kitchen and living room without blowing directly on the occupants. The entire system blends seamlessly with the existing décor.
Gree Outdoor Unit Installation Details
The photo shows the Gree outdoor condenser installed on a raised aluminum structure, resting on two robust slabs. Several technical choices were made to ensure performance, longevity, and safety.
1. Elevation and protection against snow
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The condenser is mounted on a rigid support with metal feet, which places it above ground level.
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This height reduces the risks associated with the accumulation of snow, ice and runoff water.
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The area under the terrace offers natural protection against the elements while still allowing space for air circulation.
2. Stable base on slabs and rocks
Under the support, we used thick slabs laid on a bed of stones, already present in the landscaping.
Result :
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a stable base to limit vibrations;
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adequate clearance for water drainage;
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a harmonious integration with the natural stones of the garden.
3. Clearances and air circulation
Even though the unit is positioned close to the wall of the house, we have respected all the clearances recommended by Gree to guarantee good air circulation:
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free space at the rear and on the sides;
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facade completely unobstructed;
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Optimized orientation in relation to the fence and hedge to avoid hot air recirculation in winter.
4. Duct management and aesthetics
The refrigerant lines, wiring, and condensate drain are grouped together in a vertical enclosure running along the wall. This allows:
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to protect the lines from UV rays, snow and impacts;
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to maintain a clean and professional finish , without visible cables;
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to make maintenance simpler, because the whole process is clear and accessible.
An external circuit breaker was installed near the unit to comply with the electrical code and to ensure safe maintenance operations.
Performance in Quebec winter
In Brossard, winters can be harsh, with wind, heavy snow, and frequent freeze-thaw cycles. The installation of this Gree wall-mounted heat pump takes these realities into account:
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The raised platform on metal supports limits the accumulation of ice under the unit.
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The space between the stones allows the defrosting water to drain easily.
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Partial protection of the terrace minimizes the direct impact of rainfall on the equipment.
Thanks to its Inverter technology and its design for northern climates, the Gree heat pump offers stable, quiet and economical heating during the cold season, while remaining ready to cool the house as soon as the first warm days of spring arrive.
Tangible benefits for homeowners
Since the installation, the owners have benefited from:
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Increased comfort in their main living area, both summer and winter.
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A reduction in the electricity bill , especially for heating, since the heat pump largely replaces electric baseboard heaters.
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A preserved outdoor space : the unit is discreet, well integrated into the rockery and does not encroach on the circulation areas of the terrace.
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A very low noise level in the courtyard, which allows you to fully enjoy the terrace during the warmer months.
AirGreen support: from design to maintenance
Our work doesn't end with installation. We also:
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explained to the customer how the Gree wall-mounted heat pump works, the different modes (heating, air conditioning, dehumidification, auto, eco);
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detailed best practices for use to maximize savings;
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showed how to clean the wall-mounted head filters;
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Regular maintenance is recommended to preserve performance over the years (inspection, deep cleaning, pressure checks, electrical checks).
By choosing AirGreen, the owners of this Brossard home know they can count on a team available for service, technical questions and future adjustments.
Do you live in Brossard or on the South Shore?
Whether you are in Brossard, Boucherville, La Prairie, Saint-Lambert or elsewhere on the South Shore, we can offer you a Gree wall-mounted heat pump solution tailored to your home, your lifestyle and your budget.
We take care of:
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analyzing your needs;
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choosing the right size;
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the complete and compliant installation;
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monitoring and maintenance.
Contact us to discuss your project: we would be delighted to transform your home, like this one, into a comfortable and energy-efficient space all year round.
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).
