Installation of a Gree Crossover Wall-Mounted Heat Pump in Mercier–Hochelaga-Maisonneuve, Montreal
AirGreen transforms HVAC installations into art. Experience our journey in Mercier–Hochelaga-Maisonneuve, where comfort meets elegance.
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The job on one screen
The article, chapter by chapter
Elevating Comfort with Precision and Care
At AirGreen, we don't just install HVAC systems; we craft experiences. Our recent endeavor in Mercier–Hochelaga-Maisonneuve, Montreal, is a shining example of our dedication to ensuring every installation is a masterpiece of functionality and aesthetics.
Navigating the Condo Complexities
Every installation comes with its unique set of challenges. In this case, it was the intricacies of working within a condo building. The importance of community harmony in such settings cannot be overstated. Hence, before diving into the technical aspects, we ensured our customer was well-informed about the need to seek permission from neighbors for placing the external unit in the common area. This proactive approach not only saved potential future hassles but also reinforced our commitment to a holistic service experience.
The Perfect Fit for the Kitchen
The heart of every home, the kitchen, was lacking in heating and cooling. While the main area was already equipped with a 12,000 BTU machine, it was essential to avoid overpowering the kitchen space with an excessively large unit. Enter the Gree Crossover with its 12,000 BTU capacity - a match made in HVAC heaven for this particular space. Not too big, not too small, but just right, ensuring optimal comfort without overwhelming the area.
Gree Crossover: A Closer Look
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Performance: With a cooling capacity of 12,000 BTU and an impressive heating capability even at -30°C, the Gree Crossover is built to deliver.
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Efficiency: A stellar 25.0 SEER efficiency rating coupled with an Energy Star® certification makes this model a champion of eco-friendly operations.
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Smart Connectivity: Integrated WiFi ensures that you're always in control, no matter where you are.
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Warranty: Comprehensive coverage with a 10-10-10 warranty on the compressor, parts, and labor. Plus, an included extended warranty offers added peace of mind.
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Quiet Operation: Sound pressure levels of 52.0 dB(A) externally and 27/43 dB(A) internally guarantee a disturbance-free environment.
Grants: Savings Galore
The Gree Crossover isn't just about performance and aesthetics; it's also about incredible savings. Eligibility for both federal (ranging from $2,500 to $5,000) and provincial ($385) grants makes this model a financially savvy choice for homeowners.
A Seamless Installation Experience
The cherry on top was the installation process itself. Our team, with its meticulous planning and execution, ensured that the Gree Crossover blended seamlessly into the kitchen. The result was a clean, unobtrusive setup that left our customer overjoyed.
Why AirGreen?
This installation in Mercier–Hochelaga-Maisonneuve is a testament to our expertise and commitment. Whether it's understanding the nuances of a condo installation or selecting the perfect machine for a specific space, we approach every project with unparalleled professionalism and care.
In Conclusion
AirGreen is synonymous with excellence in HVAC installations. Our work in Mercier–Hochelaga-Maisonneuve showcases our dedication to ensuring every customer enjoys optimal comfort with a touch of elegance.
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).