Installation of a Gree Extrême Wall-Mounted Heat Pump in Côte Saint-Luc
This Gree Extrême installation in Côte Saint-Luc offers reliable heating down to -30°C. With WiFi control, turbo mode, and provincial grants, it’s a high-efficiency choice for year-round comfort.
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.
An Installation That Handles the Extremes: Côte Saint-Luc Welcomes the Gree Extrême
At AirGreen, we pride ourselves on offering efficient and reliable heating and cooling solutions, no matter the conditions. In our latest project, we installed a 9,000 BTU Gree Extrême wall-mounted heat pump in Côte Saint-Luc, and this was no ordinary installation. It’s not just about comfort, it’s about making sure homes stay comfortable even when winter hits its harshest. Let’s take you through the details of this project and why the Gree Extrême is a game-changer in the world of HVAC.
Meeting Extreme Canadian Weather Head-On
Côte Saint-Luc is no stranger to the harsh, frigid winters of Québec, where temperatures regularly drop below -20°C. This is where the Gree Extrême truly shines. With a heating capacity that remains efficient down to -30°C, this system ensures warm, cozy living conditions during the coldest months of the year. It’s not just a typical wall-mounted air conditioner; it’s a heat pump designed specifically to face extreme cold without breaking a sweat—or in this case, without freezing.
Our client in Côte Saint-Luc needed a system that could deliver consistent heating even during the most punishing winter days. The Gree Extrême’s advanced defrosting system ensures the outdoor unit doesn’t freeze over, maintaining the heat pump’s performance without interruption. This was a crucial factor in the decision to choose this model for their home.
Perfect Fit for Compact Spaces
The Gree Extrême is designed to fit into tight spaces with ease. The indoor unit, measuring a sleek 38.19 inches by 8.86 inches by 11.81 inches, blended seamlessly into the home’s modern decor, while the outdoor unit was securely mounted in the building’s parking garage, thanks to our specialized installation team. Despite the challenging location, the system’s compact exterior—just 35.38 inches long and 23.5 inches high—was a perfect fit, providing powerful heating and cooling without occupying too much space.
Smart Technology for Smart Homes
One of the standout features of the Gree Extrême is its built-in WiFi module. This allows homeowners to control their heat pump remotely via the Gree+ app, adjusting the temperature to their exact preferences from anywhere in the world. Whether our Côte Saint-Luc client is on vacation or simply enjoying a cozy evening at home, they can rest assured that their heating and cooling system is always just a tap away.
The Gree Extrême also comes with I-Feel technology, a smart temperature sensor located inside the remote control. This ensures that the system heats or cools based on the actual temperature around the user, rather than the unit, leading to more accurate and personalized comfort.
Eligible for Grants and Subsidies
Beyond performance, this installation came with financial benefits. The Gree Extrême is Energy Star® certified, making it eligible for up to $400 in provincial subsidies from Hydro-Québec’s LogisVert program. Additionally, federal grants under the Greener Homes initiative can offer up to $2,500, making this an attractive option for those looking to improve their home’s energy efficiency while also saving on installation costs.
Cutting-Edge Features for Year-Round Comfort
The Gree Extrême 9,000 BTU unit is much more than just a seasonal solution. Its impressive 38 SEER rating guarantees that it provides both highly efficient cooling in the summer and powerful heating during the coldest days of winter. In fact, this heat pump’s cooling capacity is ideal for homes where keeping energy consumption low is just as important as staying comfortable.
Our client in Côte Saint-Luc can now enjoy whisper-quiet operation, with the outdoor unit running at just 53 dB(A), ensuring the system won’t disturb them—or their neighbors—whether it's maintaining a pleasant indoor temperature or keeping the home warm during a snowstorm. Meanwhile, the indoor unit’s noise level ranges from just 19 to 46 dB(A), making it barely noticeable even in the quietest of settings.
Efficient Defrosting for Maximum Heating Power
Winter in Québec often brings freezing temperatures that can challenge even the toughest heating systems. However, the Gree Extrême is equipped with an intelligent compressor defrosting system, which only activates when necessary, ensuring the outdoor unit doesn’t accumulate ice. This smart feature guarantees that energy is conserved while providing maximum heating power when it’s needed the most.
A Two-Stage Compressor for Precision and Efficiency
One of the most innovative features of the Gree Extrême is its two-stage compressor. Unlike traditional heat pumps, this system doesn’t simply turn on and off; it adjusts its output to match the home’s heating or cooling needs. This results in less wear and tear on the system, lower electricity bills, and a more precise temperature throughout the house.
The Best Warranty on the Market
At AirGreen, we stand behind the quality of the products we install. The Gree Extrême comes with an industry-leading 10-year warranty on the compressor, parts, and labor. This gives our client peace of mind, knowing that their investment is protected for the long term. With regular maintenance, this unit will continue providing exceptional comfort for years to come.
Eco-Friendly and Future-Proof
The Gree Extrême uses the environmentally friendly refrigerant R-410A, which has a much lower impact on the ozone layer compared to older refrigerants. This not only helps reduce the system’s environmental footprint but also ensures it meets future environmental regulations, making it a smart choice for homeowners who are concerned about sustainability.
Turbo Mode for Quick Comfort
One of the more exciting features of the Gree Extrême is its Turbo mode, which allows the system to reach the desired temperature faster than normal. Whether it’s cooling down the house after a hot summer day or quickly warming things up on a freezing winter morning, this feature ensures that the client in Côte Saint-Luc experiences the comfort they need, when they need it.
Conclusion: A Reliable Installation for Côte Saint-Luc
With this Gree Extrême installation, AirGreen has once again demonstrated our commitment to delivering high-quality, reliable HVAC solutions tailored to the unique needs of our clients. Whether it’s the middle of winter or a scorching summer day, the Gree Extrême is equipped to handle it all, providing efficient, powerful heating and cooling year-round. Our team expertly installed this system in a challenging location, ensuring it would provide optimal performance without compromising the aesthetic of the space.
For anyone in the Greater Montreal area, including Laval, Longueuil, the North Shore, and the South Shore, looking for a dependable, high-performance heat pump, the Gree Extrême is an excellent choice. It combines cutting-edge technology with robust design, all while offering attractive subsidies to help you save on both installation and energy costs.
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).