Installation of a Tosot wall-mounted heat pump in Laval-des-Rapides
AirGreen installs a Tosot wall-mounted heat pump in Laval-des-Rapides. An efficient and affordable HVAC solution, offering four-season comfort, energy savings, and available grants.
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.
An energy upgrade in a residential living room
At AirGreen , we support our clients in Laval and Greater Montreal with their energy modernization projects. Here, in a home located in Laval-des-Rapides , our team installed a Tosot wall-mounted heat pump , a solution that is both efficient and affordable, perfectly suited to a family home.
Project background
The owner wanted to replace an old wall-mounted air conditioner with a more efficient system capable of providing not only cooling in the summer but also heating in the winter. The goal was twofold: to reduce energy bills and increase comfort in a central living space, without resorting to a more invasive centralized system.
Choosing the Tosot brand
The Tosot brand, distributed in Quebec by Gree, is known for offering excellent value for money. It combines reliability, energy efficiency, and a discreet design. For this project, we selected an Energy Star -certified wall-mounted model, eligible for provincial and federal grant programs.
Advantages of this Tosot wall-mounted heat pump:
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Stable performance down to -25°C , ideal for our Quebec winters.
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Inverter technology for constant comfort and energy savings.
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Low noise level, ideal for a living room or bedroom.
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Extended warranty ensuring customer peace of mind.
Installation Steps
The installation took place in one day, without disrupting the daily lives of the occupants.
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Wall mounting : the indoor head has been securely fixed to a central wall, ensuring even air diffusion throughout the living room.
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Drilling through the exterior wall to pass through the refrigeration pipes and wiring.
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Passage of the connections with a clean and neat finish, including discreet white capping.
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Optimized gravity drainage , avoiding the addition of a condensate pump.
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Commissioning : vacuum testing, pressure verification, electronic calibration and complete performance check.
Challenges encountered and solutions
With the chosen wall painted a bold red, it was important to ensure the installation was perfectly aligned and aesthetically pleasing. Our technicians carefully adjusted the mounting plate to ensure a flawless finish, while minimizing visible cutouts around the unit.
Results for the client
Thanks to this installation, the customer now benefits from:
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Four-season comfort , heating and air conditioning with a single unit.
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Substantial savings on energy costs.
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A harmonious visual integration into your living room, with a discreet and silent unit.
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Access to government subsidies , reducing the cost of acquisition.
AirGreen: your HVAC expert in Laval and Greater Montreal
With hundreds of successful installations in Montreal, Laval, Longueuil, the North Shore, and the South Shore , AirGreen has established itself as the trusted partner for your HVAC projects. We ensure optimized installations, adapted to each home, and we guide our clients through every step, from selecting the right unit to applying for grants.
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.
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Every house has its constraints. We see them before we install.
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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).