Installation of a Gree Extrême Wall-Mounted Heat Pump in Sainte-Julie
We installed a high-performance Gree Extrême 18,000 BTU heat pump in Sainte-Julie, offering year-round comfort and savings. Learn how this unit handles extreme cold and qualifies for government grants!

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.
Bringing Unmatched Comfort and Efficiency to Sainte-Julie with the Gree Extrême Installation
We recently had the pleasure of completing another top-quality installation in Sainte-Julie, South Shore, where we installed a Gree Extrême 18,000 BTU wall-mounted heat pump. This installation was not only about adding a state-of-the-art HVAC system to the home but also about enhancing comfort, efficiency, and long-term savings for our customer.
Why the Gree Extrême 18,000 BTU Heat Pump Stands Out
The Gree Extrême heat pump isn't just any mini-split; it's a unit that’s specifically designed to handle the extreme temperatures of the Canadian climate. With the ability to provide consistent heating even when the mercury drops to a bone-chilling -30°C, it's truly a game-changer for homes in the Greater Montreal area. This energy-efficient system also boasts a cooling capacity of 18,000 BTU, making it a year-round comfort solution.
A Closer Look at the Installation
Our installation in Sainte-Julie was executed with precision and professionalism, ensuring that every detail was attended to. Here’s a breakdown of what made this installation unique:
- Model: Gree Extrême
- Type: Mini Split
- Cooling Capacity: 18,000 BTU
- Heating Capacity: -30°C
- Eligible Grant: The system qualifies for the $1,704 LogisVert Grant by Hydro-Québec, offering significant savings for the homeowner.
The Benefits of the Gree Extrême Installation
1. Superior Heating Performance
One of the standout features of the Gree Extrême heat pump is its ability to provide reliable heating down to -30°C. This means that even during the coldest winter nights in Sainte-Julie, this unit will keep your home cozy and warm without compromising performance.
2. Energy Efficiency and Cost Savings
With an impressive 24.5 SEER (Seasonal Energy Efficiency Ratio), this heat pump is designed to operate efficiently, reducing energy consumption and ultimately lowering your electricity bills. The G10 Inverter technology ensures that the compressor operates at variable speeds, adjusting to the home’s temperature needs and preventing unnecessary energy waste.
3. Eligible for Grants and Rebates
Our customer in Sainte-Julie was thrilled to learn that the Gree Extrême installation qualified for substantial grants:
- Federal Grant: Up to $2,500 / $5,000
- Provincial Grant: $1,704 from the LogisVert program
These grants make the investment in a Gree Extrême heat pump even more appealing, as they help offset the initial cost and improve overall savings.
The Technical Side of Our Installation
We pride ourselves on our meticulous attention to detail, ensuring that every installation meets the highest standards. Here's a bit more about the technical aspects of this project:
- Voltage: 220V
- Freon Type: R-410A, an environmentally friendly refrigerant
- Sound Levels: The interior unit operates at a quiet 34 to 51 dB(A), while the exterior unit is measured at 59.0 dB(A), ensuring that your comfort isn't interrupted by noise.
- Piping Dimensions: 1/4 - 5/8
This attention to detail ensures that the Gree Extrême functions at peak efficiency and seamlessly integrates into the home's existing infrastructure.
User-Friendly Features for Maximum Comfort
The Gree Extrême heat pump comes with numerous features designed to enhance comfort and convenience:
- Wi-Fi Connectivity: Control the system remotely using your smartphone, whether you’re at home or away.
- Turbo Mode: Quickly reach your desired temperature with this high-power function.
- Memory Function: In case of a power outage, the heat pump will automatically restart with the last settings, ensuring uninterrupted comfort.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we understand that choosing an HVAC solution is about more than just the machine itself; it's about ensuring that the installation is done correctly and efficiently. We take pride in our workmanship and dedication to providing excellent service, from the moment you contact us to the final check of your new system.
Our Commitment to Quality
- Certified Technicians: All our technicians are highly trained and experienced, ensuring that every installation is performed to the highest standards.
- Extended Warranty: We offer a 10-10-10 warranty (10 years on the compressor, parts, and labor), giving our customers peace of mind for years to come.
The Impact on Our Customer’s Home in Sainte-Julie
The homeowner in Sainte-Julie was delighted with the installation, especially the way the compact design of the Gree Extrême allowed it to blend seamlessly into their living space. Not only did the installation improve the home's comfort levels, but it also added value to the property by making it more energy-efficient and environmentally friendly.
The Perfect Climate Solution for Canadian Winters and Summers
By choosing the Gree Extrême 18,000 BTU wall-mounted heat pump, the homeowner now enjoys year-round comfort. This system not only delivers powerful heating during frigid winter months but also provides refreshing, energy-efficient cooling during the summer heatwaves.
Interested in a Similar Installation? Contact AirGreen Today!
If you're looking to upgrade your home's HVAC system, consider the Gree Extrême 18,000 BTU heat pump. With its impressive efficiency, robust heating capabilities, and eligibility for multiple grants, it's the ideal choice for homeowners in Montreal, Laval, Longueuil, North Shore, and South Shore.
Don't wait – let AirGreen help you create the perfect climate in your home, just like we did for our satisfied customer in Sainte-Julie.
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?
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).
