Installation of a GREE Vireo R32 wall-mounted heat pump in LaSalle
AirGreen installs a GREE Vireo R32 wall-mounted heat pump in LaSalle. Wall-mounted installation provides energy-efficient performance and optimal comfort for all seasons.
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.
An AirGreen installation optimized for Montreal's climate: comfort, efficiency and sustainability combined under one roof
In the residential neighborhood of LaSalle , known for its brick buildings and covered balconies typical of southwest Montreal, our AirGreen team completed the installation of a GREE Vireo R32 wall-mounted heat pump . This project perfectly illustrates our expertise: combining energy performance , architectural discretion and protection against the extreme winter conditions of Quebec.
A smart choice for four-season comfort
The owner, wishing to reduce his dependence on traditional heating systems, chose to invest in an energy-efficient HVAC solution . His goal: to maintain consistent comfort throughout all seasons while reducing his electricity costs.
We recommended the GREE Vireo R32 wall-mounted heat pump , a modern, environmentally friendly range, specially designed for the Quebec climate .
The advantage of R32 refrigerant
GREE R32 models use a new generation refrigerant, much more environmentally friendly than R410A. This fluid allows:
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superior energy efficiency ,
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a reduction in the carbon footprint ,
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and better heat transfer capacity .
This all translates into increased heating and cooling performance , even when the mercury drops below -25°C.
An installation adapted to the brick structure of LaSalle
Every building has its own unique features, and the brick walls of this duplex were no exception. Our technicians took care to:
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fix the condenser to a corrosion-resistant galvanized wall bracket ;
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use anti-vibration pads to ensure quiet operation;
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protect the refrigeration ducts with a perfectly fitted white capping ;
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make a waterproof electrical connection via a CSA-certified DuraDrive box;
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Carefully seal the wall passage to prevent any infiltration of air or moisture.
This approach not only allows for a sustainable installation , but also a harmonious integration with the brick architecture, emblematic of the sector.
A strategic position under a covered balcony
In LaSalle, the proximity of the St. Lawrence River often results in increased humidity and heavy rainfall. To protect the heat pump from these conditions, our team installed the outdoor unit under a covered balcony .
This positioning offers several advantages:
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protection against snow and direct rain ,
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better longevity of external components ,
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easy maintenance ,
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and aesthetics preserved for the backyard.
The wall mount also allows optimal clearance for air circulation, an essential element for the performance of a heat pump.
Advanced technologies and personalized comfort
The GREE Vireo R32 is equipped with the G10 Inverter compressor , a technology that automatically adjusts the system's power according to actual needs.
Result :
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reduced electricity consumption ,
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ambient temperature stability ,
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soft start that extends compressor life.
The system also offers ultra-quiet operation , ideal for urban housing in close proximity to other residences.
Technical details of the AirGreen installation
To ensure a professional-level installation, our technicians have applied AirGreen quality standards:
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Galvanized wall bracket with heavy duty stainless steel fixings;
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High density rubber shock absorbers to limit vibrations;
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DuraDrive insulated conduit wiring and waterproof junction box ;
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Refrigerant line insulated and carefully secured to prevent loss of efficiency;
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Nitrogen pressure test to ensure the circuit is leak-proof;
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Complete vacuuming before refrigerant charging.
Each step of the process is documented and verified to ensure safety, performance and electrical compliance .
Result: performance and serenity
As soon as it was switched on, the customer noticed an immediate improvement in interior comfort :
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stable and uniform temperature;
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quick control via smart remote control ;
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significant reduction in perceived noise, both indoors and outdoors;
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remarkable effectiveness even on cool spring evenings.
This type of installation contributes to a significant annual reduction in energy consumption , especially when it replaces a conventional electric heating system.
An installation eligible for energy subsidies
GREE R32 heat pumps are among the Energy Star models, eligible for Quebec subsidy programs such as:
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Heat green ,
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Renoclimat ,
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and certain local initiatives offered by Hydro-Québec .
At AirGreen , we support each client in preparing grant documents and verifying eligibility criteria , simplifying the process from start to finish.
Expertise rooted in the Greater Montreal region
Our presence in Montreal, Laval, Longueuil, on the North Shore and the South Shore allows us to offer customized HVAC solutions according to local architectural specifications.
Brick buildings in the Southwest and LaSalle require precise installations , combining mechanical robustness and aesthetic concerns — two aspects that we master perfectly.
Each AirGreen project is carried out by certified technicians , with constant attention to detail , compliance with electrical standards and customer satisfaction .
Long-term maintenance and monitoring
To ensure long-lasting performance, we recommend:
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cleaning the internal filters every three months ;
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a complete annual inspection by an AirGreen technician;
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a minimum clearance of 30 cm around the outdoor unit to ensure adequate ventilation.
Our preventative maintenance service helps extend the life of the system and prevent any drop in efficiency due to clogging or wear.
Conclusion
The installation of this GREE Vireo R32 wall-mounted heat pump in LaSalle once again demonstrates AirGreen 's commitment to providing sustainable, discreet HVAC solutions adapted to the Montreal climate .
Thanks to our expertise, the customer now benefits from four-season comfort , reduced energy consumption , and an environmentally friendly system , designed to last.
At AirGreen , each installation is more than a project: it's a promise of comfort and peace of mind for our customers in Greater Montreal.
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?
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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).