Installation of a Gree Crossover Wall-Mounted Heat Pump in LaSalle, Montreal
Dive into the story of a seamless, efficient installation in LaSalle, Montreal! Discover why the Gree Crossover Wall-Mounted Heat Pump is the silent, powerful choice for supreme comfort and efficiency.
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.
A Seamless Transition to Supreme Comfort and Efficiency
A Choice Well Made in LaSalle, Montreal
In the heart of LaSalle, Montreal, another satisfied customer has made a wise decision for their home comfort, opting for the Gree Crossover Wall-Mounted Heat Pump. This installation wasn't just about introducing a new machine into a home; it was about upgrading to a lifestyle of silent, efficient, and powerful heating and cooling.
Why the Gree Crossover?
- Silent Operation: With an interior sound pressure level ranging between 31 to 46 dB(A), the Gree Crossover ensures a tranquil environment. Its whisper-quiet operation makes it an ideal companion for living rooms, ensuring no disturbance as you relax or entertain.
- Powerful Heating & Cooling: Offering a robust 18,000 BTU cooling capacity and the ability to heat efficiently up to -30°C, this model is a powerhouse in a sleek package.
- Extended Warranty: The 10-10-10 warranty on compressor, parts, and labor, along with the included extended warranty, provides peace of mind for a decade.
- Smart Connectivity: With built-in WiFi, controlling your home’s climate is at your fingertips, wherever you are.
- Energy Efficiency: With a 23.0 SEER efficiency rating and Energy Star® certification, it’s designed for optimal energy savings.
The Installation Journey in LaSalle
Our team at AirGreen approached this installation with the meticulous care and expertise we're renowned for in Montreal, Laval, Longueuil, North Shore, and South Shore. The customer had an older heat pump connected with 1/4 - 5/8 pipes, which had served faithfully but was due for a modern replacement.
A Smooth Replacement Process
The transition to the Gree Crossover was seamless and straightforward. After a thorough consultation and evaluation of different models, the customer was drawn to the Crossover for its aesthetic appeal, silent operation, and the promise of heating up to -30°C. The decision was made, and the AirGreen team swung into action.
Attention to Detail
- Pipe Cleaning: We initiated the process with a meticulous cleaning of the old pipes. This step is crucial to prevent any residual dirt or debris from interfering with the new installation.
- Swift Installation: Responding promptly to the customer’s call, the installation was scheduled and executed efficiently, with no steps overlooked.
- Customer Satisfaction: The end result was a clean, professional installation that left our customer delighted and reassured of their choice.
Invest in Comfort with Provincial Grants
The Gree Crossover model qualifies for a Provincial Grant of $570, making it not only an investment in comfort but also a financially savvy choice for homeowners looking to upgrade their HVAC systems.
Choose AirGreen for Your HVAC Needs
With a track record of satisfied customers and a portfolio of successful installations, AirGreen is your go-to HVAC service provider in the greater Montreal area. Our commitment to quality, customer satisfaction, and professional expertise makes us the preferred choice for many homeowners.
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).