Installation of a Comfortmaker wall-mounted heat pump in Chomedey, Laval
Installation of a Comfortmaker wall-mounted heat pump in Chomedey, Laval. AirGreen offers four-season comfort, energy savings, and grants available. HVAC experts in Montreal, Laval, Longueuil, North Shore, and South Shore.
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The article, chapter by chapter
Elegant and efficient integration into a small space
At AirGreen , we know that every HVAC installation project must be tailored to the available space and the specific needs of the occupants. In this project in Chomedey, Laval , we installed a Comfortmaker wall-mounted heat pump in a single-family home where optimizing interior space was a priority.
Features of the Comfortmaker wall-mounted heat pump
The Comfortmaker wall-mounted heat pump line is renowned for its durability , superior energy efficiency and reliability in cold weather . The model installed here offers:
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A power of 12,000 BTU , ideal for a master bedroom or an enclosed space.
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Stable performance down to -25°C , perfectly suited to Laval's harsh winters.
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Energy Star certification, allowing you to significantly reduce your annual energy bill.
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Quiet operation, a major advantage for installation in a rest room.
A project with space constraints
The installation was carried out above an interior door , a location which required precise technical execution:
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Reduced height management : The space between the ceiling and the door frame was limited. Our technicians adjusted the wall mount to meet the manufacturer's recommended minimum distances.
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Ductwork : The refrigeration connections and electrical cable have been carefully routed through the side of the wall to maintain a discreet and aesthetic appearance.
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Condensate drainage : a gravity system was chosen, avoiding the addition of a lifting pump and guaranteeing increased long-term reliability.
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Interior finish : the wall unit fits perfectly into a modern decor with pale gray painted walls, without compromising visual harmony.
Benefits for the customer
At the end of the project, the owners benefit from:
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Four-season comfort , with heating in winter and air conditioning in summer.
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Space saving thanks to a discreet wall installation, out of the way.
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Government subsidies (LogisVert and Chauffez Vert) accessible thanks to Energy Star certification.
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Added value to the property by modernizing the heating and air conditioning system.
Grants available
Comfortmaker heat pumps installed by AirGreen are eligible for financial assistance programs in effect in Quebec, both for their energy performance and their ability to reduce electricity consumption during extreme cold. Our team systematically supports customers in the preparation and follow-up of grant applications , to ensure a smooth and rapid process.
An installation adapted to the realities of the sector
In a neighborhood like Chomedey , where many homes have space constraints and unique interior designs, careful, custom installation is essential. Thanks to our expertise, we were able to optimally integrate this Comfortmaker wall-mounted heat pump , guaranteeing our customers comfort, savings, and peace of mind .
At AirGreen, we make each project a unique achievement , adapted to the needs and constraints of each home, whether in Montreal, Laval, Longueuil, on the North Shore or the South Shore .
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).