Installation of a Gree Sapphire Wall-Mounted Heat Pump in Le Sud-Ouest, Montreal
See how a high-efficiency Gree Sapphire enhances Montreal homes with smart, space-saving installation by AirGreen!
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 the heart of Montreal's Le Sud-Ouest borough, a charming residential area known for its vibrant community and historic architecture, the team at AirGreen recently completed an intricate HVAC installation that not only enhances comfort but also preserves the aesthetic integrity of a beautiful brick home. This project featured the installation of a high-efficiency Gree Sapphire wall-mounted heat pump, known for its remarkable features and energy-saving capabilities.
Innovative Installation Ensures Space Preservation
One of the standout aspects of this installation was the strategic placement of the compressor unit. In urban settings like Le Sud-Ouest, where outdoor space is at a premium, finding a spot for bulky HVAC equipment can be challenging. Our solution was to mount the compressor high beside the balcony, ensuring that no valuable balcony space was compromised. This approach not only preserved the homeowner’s outdoor living area but also demonstrated AirGreen’s commitment to thoughtful, customized HVAC solutions.
Gree Sapphire: A Synthesis of Style and Efficiency
The Gree Sapphire model is a testament to what modern air conditioning technology can achieve. With an Energy Star® certification and an impressive 24.5 SEER efficiency rating, this unit is designed to provide maximum comfort with minimal environmental impact. Below are some key features that make the Sapphire an excellent choice for residential heating and cooling:
- Ultra-efficient Heating and Cooling: The unit's ability to heat efficiently down to -30°C and cool spaces with a capacity of 18,000 BTU ensures year-round comfort in Montreal’s fluctuating climate.
- Smart Technology: Equipped with WiFi capabilities and the GREE+ app, homeowners can easily control their indoor temperature from their smartphones, enhancing convenience and energy efficiency.
- Low Noise Operation: The outdoor unit operates at a sound pressure level of 59 dB(A), and the indoor unit ranges between 34 dB(A) and 51 dB(A), ensuring a quiet environment inside and outside the home.
- Eco-friendly: Uses R-410A refrigerant, which is known for its lower environmental impact compared to other refrigerants.
- Extended Warranty: Offers peace of mind with a 12-year warranty on both parts and the compressor.
Customer-Centric Approach and Long-Term Benefits
The installation process was not just about setting up a heat pump; it was about ensuring the longevity and effectiveness of the system. Our team used 1/4 - 5/8 pipes and maintained a voltage of 220V to ensure optimal performance. The addition of advanced filter options and features like the lock mode, sleep function, timer, and self-diagnosis underscores the unit's user-friendly design.
Why Choose AirGreen for Your HVAC Needs?
Choosing AirGreen means opting for a partner who understands the intricacies of HVAC systems and values the aesthetics of your home as much as functionality. Our installation of the Gree Sapphire in Le Sud-Ouest, Montreal, serves as a prime example of our ability to blend technology with tailored solutions. Whether you are looking to preserve balcony space or require a high-efficiency system that performs in extreme weather, AirGreen is equipped to meet your needs with precision and care.
Our commitment to providing detailed, environmentally responsible, and energy-efficient heating and cooling solutions makes us a top choice for residents across Montreal, Laval, Longueuil, North Shore, and South Shore.
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).