Installation of a Gree Crossover Wall-Mounted Heat Pump in Lorraine, North Shore
Dive into a tale of efficiency & innovation with our recent installation in Lorraine! The Gree Crossover is a silent powerhouse of features, offering comfort, control & savings. Discover why it’s a favorite!

Take a tour of the installation
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.
A Seamless Blend of Efficiency and Innovation
A Strategic Installation in Lorraine, North Shore
In the picturesque town of Lorraine located on the North Shore, we at AirGreen recently completed an installation that is the epitome of efficiency and innovation. The client, embarking on significant renovations in his newly acquired condo, sought a heating solution that is not only powerful but also smart and reliable.
Choosing the Gree Crossover: A Wise Decision
After meticulous consideration, the Gree Crossover Wall-Mounted Heat Pump was the chosen device. This model is a favorite among our clientele, and for good reasons:
- Cooling Capacity: A robust 12,000 BTU, ensuring a comfortable environment regardless of the external temperatures.
- Heating Efficiency: With the ability to provide heat in temperatures plummeting to -30°C, it’s a true winter warrior.
- Silent Operation: With an interior sound pressure level ranging between 27 to 43 dB(A), it whispers while it works.
Smart Features for a Smart User
Our client desired a unit that integrates seamlessly with his digital lifestyle. The Gree Crossover does not disappoint:
- WiFi Connectivity: The built-in feature allows control from anywhere using a smartphone, providing convenience and efficiency.
- Energy Star® Certified: An assurance of energy efficiency, translating to significant savings on energy bills.
A Warranty That Speaks Volumes
Investing in the Gree Crossover is stress-free with a comprehensive 10-year warranty on the compressor, parts, and labor. An extended warranty is also inclusive, providing an additional layer of security and peace of mind to the investment.
Craftsmanship That Tells a Story
The installation process was medium in difficulty, but with our skilled technicians, it was a breeze. The client had specific requirements for the wall where the unit was to be installed, as it was still under renovation. Understanding his needs, we provided the contact of a trusted professional plasterer we regularly collaborate with. This synergy resulted in a win-win situation, with the client receiving expert services for the remainder of his renovation project.
Federal and Provincial Grants: Maximizing Savings
The Gree Crossover model qualifies for both Federal and Provincial grants, allowing our client to enjoy substantial savings. With up to $5,000 available from the Federal Grant and an additional $385 from the Provincial Grant, it’s not just about spending but also saving smartly.
A Successful Installation Tale
From the initial consultation to the final installation, this project in Lorraine was a harmonious blend of client expectations and our commitment to delivering excellence. The Gree Crossover Wall-Mounted Heat Pump stands as a testament to our dedication to providing HVAC solutions that are efficient, innovative, and tailored to the unique needs of each client.
The big day, step by step
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 would it look like 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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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.
More jobs to see, near you
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Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Every house has its constraints. We see them before we install.
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).
