Installation of a Gree wall-mounted heat pump in Laval-des-Rapides
Installation of a Gree Inverter wall-mounted heat pump in Laval-des-Rapides. AirGreen offers reliable and comprehensive HVAC services in Montreal, Laval, Longueuil, the North Shore, and the South Shore.
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A modern energy solution for optimal comfort
At AirGreen , we know how a reliable HVAC system can transform the quality of life in a home. In Laval-des-Rapides, our team recently installed a Gree Inverter wall-mounted heat pump , an option that combines energy efficiency, year-round comfort, and proven durability. This type of installation is ideal for homes located in urban areas where space management and efficient heating and cooling are priorities.
Why a Gree wall-mounted heat pump?
Gree is increasingly becoming a popular choice in Greater Montreal, particularly for:
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Its Inverter technology adjusts the compressor speed according to actual needs, allowing energy savings.
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Its low temperature performance is capable of ensuring efficient heating even on the coldest days of the Quebec winter.
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Its reliability and low maintenance , guaranteeing peace of mind to owners.
In this residence, the client wanted to replace an old wall-mounted air conditioner with a more versatile system capable of heating and cooling efficiently, while being eligible for energy subsidy programs available in Laval and elsewhere in Quebec.
Installation Steps
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Outdoor Unit Positioning : The Gree condenser was installed on an outdoor slab, with anti-vibration mounts to reduce noise and extend compressor life.
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Connection of the pipes : The refrigeration and electrical lines were carefully fixed and insulated, protected by a discreet cover.
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Optimized drainage : A gravity drainage system has been installed, simplifying maintenance and avoiding the risks of breakdown associated with pumps.
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Precise drilling : The drillings in the brick wall were made in a watertight manner, with a careful finish to ensure insulation and aesthetics.
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Testing and Calibration : At the end of the work, we carried out a complete start-up test to validate the sealing, the heating and cooling performance as well as the operation of the remote control.
Challenges and solutions
The installation presented a particular challenge due to the proximity of the electrical panel and the space constraints available on the rear balcony. Thanks to our experience, we were able to:
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Use optimal pipe routing.
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Minimize clutter while ensuring easy access for future maintenance.
Immediate benefits for the customer
With this new Gree wall-mounted heat pump , the owner now benefits from:
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Four-season comfort : air conditioning in summer and efficient heating in winter.
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Energy savings thanks to inverter technology.
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A durable and discreet installation , respecting the aesthetics of the facade.
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Eligibility for government grants for energy efficiency.
AirGreen, your HVAC expert in Laval and Greater Montreal
At AirGreen, we put our expertise at the service of each residential or commercial project. Whether you are located in Montreal, Laval, Longueuil, on the North Shore or the South Shore , our team assists you in the selection, installation and maintenance of your HVAC systems.
This installation in Laval-des-Rapides perfectly illustrates our commitment: to offer efficient, sustainable solutions adapted to the specific needs of each client.
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).