Installation of a Gree Crossover 12,000 BTU Wall-Mounted Heat Pump in Deux-Montagnes
Discover how AirGreen transformed a Deux-Montagnes home with the Gree Crossover 12,000 BTU heat pump—ideal for -30°C winters and energy-efficient all year round!
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 to Homes in Deux-Montagnes
When it comes to ensuring year-round comfort for your home, the Gree Crossover 12,000 BTU Wall-Mounted Heat Pump is an exceptional choice. At AirGreen, we’re committed to delivering high-quality HVAC solutions across Montréal, Laval, Longueuil, Rive Nord, and Rive Sud. This recent installation in Deux-Montagnes showcases not only the superior performance of the Gree Crossover but also our dedication to excellent customer service and attention to detail.
Project Overview: Meeting Unique Customer Needs
In Deux-Montagnes, our client was looking for a heating and cooling solution capable of handling Québec’s notoriously cold winters and warm summers. They wanted a system that combined energy efficiency, durability, and seamless integration into their home. The Gree Crossover 12,000 BTU heat pump stood out as the perfect match for their needs.
- Type of Machine: Wall-Mounted Ductless Mini Split
- Brand: Gree
- Model: Crossover 12,000 BTU
- Heating Capacity: Effective down to -30°C
- Cooling Capacity: Reliable up to -29°C
- Efficiency: 25.0 SEER rating
- Noise Level: Whisper-quiet operation at just 27-43 dB(A) indoors
- Refrigerant: Eco-friendly R-410A
- WiFi Control: Included for convenience
- Grant Eligibility: $385 LogisVert Grant by Hydro-Québec
Why the Gree Crossover? A Closer Look
The Gree Crossover series is designed to meet the demands of Canadian homes, offering energy-efficient operation and advanced technology. Here’s why it was the ideal choice for this installation:
1. Extreme Weather Performance
This heat pump is built to operate in temperatures as low as -30°C, ensuring the home stays cozy even during the harshest winters. In summer, its efficient cooling capabilities provide relief from the heat.
2. Advanced Inverter Technology
Gree’s proprietary G10 Inverter technology allows for precise temperature control, ensuring consistent comfort while reducing energy consumption.
3. Smart Features for Modern Living
With built-in WiFi and compatibility with the GREE+ app, the homeowner can easily control the unit’s settings from their smartphone, optimizing comfort with just a few taps.
4. Quiet Operation
Operating at a mere 27 dB(A) indoors, the unit provides a peaceful environment, making it perfect for bedrooms or living spaces.
5. Compact and Stylish Design
The sleek, minimalist design of the Crossover seamlessly blends into any interior, proving that high performance doesn’t have to compromise aesthetics.
Installation Details: Precision and Expertise
Our expert technicians began by carefully assessing the home’s layout to determine the best placement for the indoor and outdoor units. For this project, we mounted the indoor unit in a central location, ensuring optimal airflow and even temperature distribution throughout the home.
Key Installation Steps:
- Wall Mounting: The indoor unit was securely installed with precision to maintain its sleek appearance and functionality.
- Piping and Connections: High-quality copper pipes were used to ensure efficient refrigerant flow and long-lasting performance.
- Electrical Integration: The heat pump was seamlessly integrated into the home’s electrical system, ensuring safe and reliable operation.
- Outdoor Unit Setup: Positioned for maximum efficiency and minimal visual impact, the outdoor unit was installed with anti-vibration pads to reduce noise and wear.
- System Testing: Once installed, the system underwent rigorous testing to confirm its performance and efficiency.
Customer Benefits: Comfort Meets Efficiency
After the installation, the homeowner immediately noticed the difference in comfort and energy efficiency. Here’s what they gained:
- Year-Round Comfort: The Gree Crossover delivers consistent heating and cooling regardless of the season.
- Energy Savings: With its Energy Star certification and 25.0 SEER rating, this unit significantly reduces electricity bills.
- Quiet Environment: Whisper-quiet operation ensures undisturbed relaxation.
- Ease of Use: The WiFi-enabled controls make managing the system a breeze.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we pride ourselves on providing exceptional HVAC services tailored to the unique needs of each client. Here’s why homeowners in Deux-Montagnes and beyond trust us:
- Expertise: Our team has extensive experience installing, maintaining, and repairing HVAC systems across Montréal, Laval, Longueuil, Rive Nord, and Rive Sud.
- Quality Products: We work with leading brands like Gree to offer reliable and energy-efficient solutions.
- Customer-Centric Approach: From consultation to installation, we prioritize your comfort and satisfaction.
- Grant Assistance: We guide you through the process of accessing grants like the $385 LogisVert Grant to make your investment even more affordable.
The Gree Crossover: A Sustainable Choice
Investing in the Gree Crossover isn’t just about comfort—it’s a step toward sustainability. With its use of eco-friendly refrigerants and energy-efficient technology, this unit helps reduce your home’s carbon footprint while saving on energy costs.
Final Thoughts: Transform Your Home Today
Whether you’re in Deux-Montagnes or elsewhere in the Greater Montréal area, upgrading to a high-performance heat pump like the Gree Crossover can revolutionize your home’s comfort and efficiency. At AirGreen, we’re here to help you make the best choice for your HVAC needs, delivering professional installations and outstanding service.
Ready to experience the AirGreen difference? Contact us today to learn more about our services and schedule your installation.
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?
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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).