Installation of a GREE Sapphire Wall-Mounted Heat Pump in Montreal
Discover the ultimate in home comfort with AirGreen’s installation of a GREE Sapphire 18,000 BTU heat pump in Montreal. Energy-efficient, quiet, and grant-eligible—experience luxury living today!
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Transforming Comfort and Efficiency in Montreal Homes with AirGreen's Expertise
Introduction to the Project
At AirGreen, our mission is to bring unparalleled comfort and energy efficiency to homes across Montreal, Laval, Longueuil, and the Rive Nord and Rive Sud. In this recent project, we installed the GREE Sapphire 18,000 BTU wall-mounted heat pump, a top-tier choice for homeowners seeking advanced heating and cooling solutions. This installation was completed in a charming Montreal home, seamlessly blending modern technology with the homeowner’s aesthetic preferences.
The GREE Sapphire is renowned for its high efficiency (24.5 SEER), quiet operation, and ability to heat even in extreme winter conditions as low as -30°C. With an impressive $1,704 LogisVert Grant eligibility from Hydro-Québec, this installation represents a smart investment for comfort and sustainability.
The GREE Sapphire: A Model of Efficiency and Elegance
Key Features of the GREE Sapphire
- Cooling Capacity: 18,000 BTU – perfect for keeping large rooms or open spaces comfortably cool in summer.
- Heating Capacity: Reliable performance even in frigid conditions down to -30°C.
- Energy Star® Certified: Ensuring lower energy bills and a reduced carbon footprint.
- Whisper-Quiet Operation: Interior sound levels between 34 dB and 51 dB—ideal for peaceful living spaces.
- WiFi-Enabled with GREE+ App: Control your unit remotely for unmatched convenience.
- Smart Features:
- Advanced defrost technology.
- Feel Mode, which ensures precise temperature adjustments based on the remote's location.
- Sleep Function for energy-efficient, comfortable rest.
Technical Specifications
- Interior Unit Dimensions: 44.19 x 9.81 x 13 inches.
- Exterior Unit Dimensions: 38.63 x 16.81 x 31.13 inches.
- Refrigerant: Environmentally friendly R-410A.
- Sound Pressure Levels: Exterior at 59 dB(A) and ultra-quiet interior operation.
- Warranty: Comprehensive 12-year warranty on both compressor and parts for peace of mind.

The Story Behind the Installation
This particular project involved a Montreal homeowner who was eager to upgrade their HVAC system for better year-round performance. The family, avid fans of sustainable living, wanted a solution that aligned with their eco-conscious values while also providing optimal comfort in Quebec's challenging climate.
Upon consultation, we recommended the GREE Sapphire 18,000 BTU mini split. This system was chosen not only for its exceptional energy efficiency but also for its sleek design, which complemented the modern aesthetics of the home’s stone-accented walls and minimalist decor.
The homeowners were thrilled about the potential savings on their energy bills, as well as the $1,704 LogisVert Grant that significantly offset the cost of their investment.
The Installation Process
Step 1: Site Evaluation and Preparation
Before installation, our team conducted a comprehensive evaluation of the space to ensure optimal placement of the interior and exterior units. The goal was to maximize airflow while minimizing the visual impact of the units on the home’s design.
Step 2: Mounting the Interior Unit
The interior unit was securely mounted on a beautifully textured stone wall in the home’s dining area. This central location allows for even temperature distribution throughout the space. The unit’s sleek design blended seamlessly with the room’s decor, enhancing its aesthetic appeal.
Step 3: Installing the Exterior Unit
The exterior unit, designed to withstand harsh weather conditions, was installed in a discreet yet accessible location. Proper piping and electrical connections were established, ensuring long-term reliability and efficiency.
Step 4: Final Testing and Demonstration
Once installed, the system was rigorously tested to confirm its performance in both heating and cooling modes. We then walked the homeowners through the WiFi setup and demonstrated how to use the GREE+ app for remote control.
Why Choose AirGreen for Your HVAC Needs?
1. Expertise and Professionalism
With years of experience, AirGreen has become a trusted name in HVAC services across Montreal, Laval, Longueuil, and surrounding regions. Our team is dedicated to delivering installations that exceed expectations.
2. Customer-Centric Approach
From the initial consultation to post-installation support, we prioritize your satisfaction. Our team is always available to address questions or concerns.
3. Grants and Rebates
We help our customers take full advantage of available grants, such as the $1,704 LogisVert Grant from Hydro-Québec, making your investment even more affordable.
4. Tailored Solutions
Every home is unique, and we take the time to customize our installations to meet your specific needs and preferences.
The Benefits of Upgrading to the GREE Sapphire
- Year-Round Comfort: Whether it’s the peak of summer or the depths of winter, the GREE Sapphire ensures your home stays at the perfect temperature.
- Energy Savings: With an impressive 24.5 SEER efficiency, you’ll enjoy lower utility bills without compromising on comfort.
- Sustainability: Reduce your carbon footprint with an Energy Star® certified system that uses environmentally friendly refrigerant.
- Quiet Operation: Experience comfort without the noise, thanks to the Sapphire’s whisper-quiet design.
What the Homeowners Had to Say
The Montreal family was delighted with the results, praising the unit’s sleek appearance and powerful performance. They were particularly impressed by the WiFi capabilities, which allow them to adjust settings remotely—a feature that’s already proving useful in their busy lives.
The homeowners expressed gratitude for AirGreen’s professionalism and attention to detail, noting how seamless the entire process was from start to finish.
Conclusion
The installation of the GREE Sapphire 18,000 BTU wall-mounted heat pump in this Montreal home is a testament to AirGreen’s commitment to quality and customer satisfaction. With its cutting-edge technology, energy efficiency, and sleek design, the GREE Sapphire offers a perfect balance of performance and aesthetics. Backed by generous grants like the $1,704 LogisVert Grant, this installation is not only a step towards enhanced comfort but also a wise financial investment.
If you’re considering upgrading your HVAC system, trust AirGreen to deliver solutions that exceed your expectations. Contact us today to schedule a consultation and experience the difference of working with Montreal’s HVAC experts.
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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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).
