Installation of a Gree Sapphire Wall-Mounted Heat Pump in Nuns' Island, Montreal
Dive into AirGreen’s latest success story where elegance meets efficiency! Discover the Gree Sapphire Wall-Mounted Heat Pump installation in Nuns' Island, Montreal, and learn how strategic HVAC solutions bring comfort, savings, and peace of mind to our satisfied clients.
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The job on one screen

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A Symphony of Efficiency and Elegance: Unveiling Our Recent HVAC Masterpiece
Strategic Solution for Targeted Comfort
In the serene and prestigious area of Nuns' Island, Montreal, our seasoned team at AirGreen recently accomplished another triumphant installation of a Gree Sapphire Wall-Mounted Heat Pump. This installation wasn’t just about introducing a machine into a home; it was about weaving a tapestry of comfort, efficiency, and aesthetic grace into the living space of our esteemed client.
Why the Gree Sapphire?
Our client had a predicament: a well-functioning central heating and air conditioning system was already in place, yet a particular area within their residence persistently fell short of the desired temperature levels. The options on the table were either to overhaul the existing system for a larger one or to ingeniously target the problematic area with a dedicated solution. After meticulous assessment and cost-benefit analysis, the choice was clear and unanimous: the Gree Sapphire Wall-Mounted Heat Pump.
- Silent Operation: With an interior sound pressure level ranging between 22 to 49 dB(A), the Gree Sapphire operates with whisper-like quietness, ensuring a tranquil environment.
- Impressive Efficiency: Boasting a 30.5 SEER efficiency rating and Energy Star® certification, this model is a paragon of energy conservation and performance.
- Reliable Warranty: A comprehensive 10-year warranty covering compressor, parts, and labor provides peace of mind and underscores the product’s durability.
- Adaptable to Extreme Temperatures: Designed to function optimally even at -30°C, the Gree Sapphire is a reliable companion through the whimsical Canadian winters.
- Smart Connectivity: With built-in WiFi, controlling and monitoring the unit is conveniently at your fingertips through smart devices.
Installation: A Seamless Integration
The installation process mirrored the elegance and simplicity of the Gree Sapphire itself. Our team, armed with expertise and a commitment to excellence, ensured that the unit not only addressed the temperature imbalance but also blended seamlessly with the home’s interior design. The exterior unit, with dimensions 35.41 x 14.88 x 23.5, was placed strategically to be unobtrusive while the interior unit, measuring 39.88 x 8.75 x 12.13, was installed with precision to complement the room’s aesthetics.
Grants and Savings: Maximizing Value
The financial prudence of choosing the Gree Sapphire was further accentuated by the availability of substantial grants. Our client was eligible for a Provincial Grant of $405. This grant, coupled with the unit’s energy efficiency, culminate in significant savings in the long run.
A Tale of Satisfaction
At the heart of this installation story is a tale of customer satisfaction. The client’s delight was palpable as they experienced the immediate benefits of targeted heating and cooling, delivered silently and efficiently by the Gree Sapphire. The 10-year warranty was the cherry on top, providing assurance that this investment was not only wise but also secure.
Choose AirGreen: Where Expertise Meets Care
Every installation we undertake at AirGreen is a symphony of technical expertise, customer-centric planning, and a deep understanding of the unique HVAC needs of Montreal residents. Our gallery of successful installations is a testament to our commitment to bringing comfort and efficiency to your homes, one installation at a time. With AirGreen, you are not just getting a service; you are becoming a part of a community of satisfied customers who have experienced the pinnacle of HVAC solutions.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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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An on-site estimate, the right capacity, the right equipment.
The on-site estimate is free and the quote follows within 24 hours.
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).
