Installation of an Ameristar wall-mounted heat pump in Chomedey
Installation of an Ameristar wall-mounted heat pump in Chomedey, Laval. AirGreen offers four-season comfort and energy savings with expert HVAC service throughout Greater Montreal.
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 accessible and efficient comfort solution for families
At AirGreen , we support families in Greater Montreal who want to improve their comfort without increasing their energy costs. In a recent project in Chomedey, Laval , our technicians installed an Ameristar wall-mounted heat pump , a brand known for its reliable and affordable systems. The client, a family living in a single-family home, was looking for a unit that could heat in the winter and cool in the summer , while reducing their electricity bill.
Why the Ameristar wall-mounted heat pump is a smart choice
The Ameristar range, distributed in Quebec and integrated into the AirGreen offering, attracts many owners with its value for money and ease of use. Here are some advantages:
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Efficient heating down to -20°C , ideal for the Laval climate.
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Fast and quiet air conditioning , ensuring optimal summer comfort.
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Compact and discreet design , easily integrated into any room.
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Energy saving , thanks to seasonal efficiency higher than that of electric baseboards.
The model installed in this residence is rated at 12,000 BTU , perfectly suited to the size of the living room and the main open area.
Installation process
Inner head positioning
The wall-mounted fan was installed in an open area of the living room, approximately two meters above the floor, ensuring good air circulation. The backlit digital display, visible on the unit, allows for simple and intuitive control.
Conduits and drilling
Technicians drilled through the exterior wall to install the refrigerant and electrical pipes, protected by discreet white capping . The thermal insulation and sealing were carefully carried out to ensure a perfect seal and prevent any air infiltration.
Condensate management
The system was designed with a gravity drain , allowing water to drain naturally to the outside, without requiring an additional pump.
Compressor Installation
Outside, the Ameristar compressor was mounted on wall brackets , keeping it elevated to protect it from snow and moisture. A clearance was maintained around the unit to promote optimal ventilation.
Technical challenges and solutions
One of the main challenges of this project was the wall's unique thickness, which required deeper drilling and precise conduit management. Thanks to our technicians' experience, the operation was carried out smoothly and without impacting the interior aesthetics. The electrical connection was also adapted to comply with RBQ and CSA standards.
Grants and savings
Ameristar appliances are eligible for several provincial and federal grant programs , including the energy transition program to encourage the use of efficient HVAC systems. This allowed the family to reduce their investment cost while ensuring a rapid return on investment in electricity savings.
End result: comfort and peace of mind
After commissioning, the family immediately felt a noticeable difference: a soft, even coolness throughout the room and the certainty of reliable heating for the coming winter. The minimalist design of the indoor unit blended perfectly with their decor, and the entire system operates in appreciable silence.
Why trust AirGreen for your heat pump installation in Laval
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A certified and experienced team in installing wall-mounted heat pumps.
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Expertise covering Montreal, Laval, Longueuil, North Shore and South Shore .
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Complete support: free estimate, advice on subsidies, professional installation and after-sales support.
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Tailor-made solutions adapted to the reality of each residence.
With AirGreen, each installation becomes a sustainable project that truly improves the comfort and quality of life of our customers.
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).