Installation of a Gree multi-zone heat pump in Brossard
In Brossard, AirGreen installed a Gree multi-zone heat pump on a raised platform with a stone bed for optimal drainage. The result: a comfortable home year-round, energy savings, and a clean, durable installation ready for Quebec winters.
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.
When this Brossard homeowner contacted us, his goal was clear: to enjoy a high-performance, quiet and reliable heating and air conditioning system, capable of withstanding the harsh winters of the South Shore while offering optimized comfort in several areas of the house.
We suggested the installation of a Gree multi-zone heat pump , an ideal solution for residences that want both high energy efficiency and maximum flexibility in the distribution of comfort.
The project context
The property is a single-family home with a lawn at the rear. The available space on the side facade offered a perfect location for the outdoor unit: unobstructed, well-ventilated, and far enough away from windows and living areas to limit perceived noise inside.
The client's priorities:
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Reduce your electricity bills by replacing a less efficient heating system.
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Gain comfort in the main rooms, especially the living room and bedrooms.
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Having reliable equipment, capable of heating even in very cold weather.
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Benefit from a clean, durable and aesthetically pleasing installation.
Choosing a Gree multi-zone heat pump
We recommended a new generation Gree multi-zone heat pump , with a capacity of approximately 36,000 BTU , capable of powering multiple wall heads inside the house.
Some advantages of this multi-zone configuration:
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Comfort zoning : each equipped room has its own thermostat and settings, allowing the temperature to be adjusted according to actual use.
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Heating performance : Gree's inverter compressor technology offers excellent efficiency even in negative temperatures, while automatically modulating power to avoid overconsumption.
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Energy efficiency : the heat pump consumes much less electricity than an electric baseboard heating system, while maintaining a stable and comfortable temperature.
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Quiet operation : both the outdoor unit and the indoor units are designed to be discreet, which is particularly appreciated in a quiet residential area like Brossard.
An outdoor installation designed for our winters
The photo clearly shows the Gree outdoor unit mounted on a galvanized steel bracket securely fixed to the wall. This configuration was not chosen at random.
Elevated support for snow removal and durability
We deliberately raised the heat pump:
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To protect it from the accumulation of snow and ice , which is common on the South Shore.
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To ensure good air circulation under and around the device, essential for the system's efficiency.
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To facilitate long-term maintenance and service .
Beneath the unit, we created a bed of river stones . This decorative rock area allows for:
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Efficient drainage of condensation water and melted snow.
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To avoid mud splashes on the wall and equipment.
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To improve the overall aesthetics of the technical facade at the rear of the house.
Conduit and power supply management
On the right side, the refrigerant lines and communication cables are grouped in white protective covers that terminate directly at the foundation. This clean and discreet finish:
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Protects pipes against impacts and weathering.
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Limits heat loss by keeping the insulation intact.
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It integrates visually with the facade for a neat result.
The heat pump's power supply is provided by a rigid conduit leading to a disconnect box located near the meter. We always adhere to:
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The requirements of the Quebec Electrical Code .
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Recommendations from the manufacturer Gree.
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The necessary clearances to allow the electrician and our technicians to work safely.
At the front of the unit, two black corrugated plastic sleeves are also visible, designed to channel and protect certain drains or technical conduits . This type of detail is typical of our approach: thinking now about maintenance and possible future system upgrades.
Indoor comfort: multiple zones, one heat pump
Although the indoor units are not visible in the photo, this project in Brossard includes several Gree wall-mounted units strategically placed throughout the house:
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A main head unit in the living room/living area , to ensure everyday comfort.
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One or more heads in the rooms , to provide a stable temperature at night.
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A possible head for the basement , in order to manage the humidity and temperature variations typical of lower levels.
Thanks to this multi-zone configuration:
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The customer avoids unnecessarily heating areas that are not used.
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Each person can adjust the temperature of their room according to their preferences.
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The house is comfortable in summer as in winter, without drafts or sudden changes.
Results for the Brossard client
During commissioning, we took the time to:
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Check the pressures, flow rate and performance of the heat pump.
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Explain to the owner how the different remote controls and heating and air conditioning modes work.
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Provide advice on basic maintenance: cleaning filters, clearing the outdoor unit in winter, etc.
Initial customer feedback:
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A more consistent feeling of comfort throughout the house.
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An expected decrease in the electricity bill compared to his previous heating method.
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The satisfaction of having a clean, well-integrated installation ready to face many Quebec winters.
AirGreen: Your Gree heat pump specialist on the South Shore
At AirGreen, we install and maintain Gree heat pumps throughout Greater Montreal. This project in Brossard perfectly illustrates our way of working: a rigorous technical approach, combined with a particular attention to aesthetics and durability.
Whether you live in Brossard, Saint-Lambert, Longueuil, La Prairie or elsewhere on the South Shore , our team is here to:
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Assess your actual heating and air conditioning needs.
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We can offer you the most suitable Gree configuration (wall-mounted, multi-zone or central).
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Create a clean, compliant installation designed for Quebec's climate conditions.
Do you also want to improve your comfort while reducing your energy consumption? Contact us : we will be happy to study your project and advise you.
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).