Installation of a Windair wall-mounted heat pump in a condo in Rosemont–La Petite-Patrie
AirGreen installed a Windair wall-mounted heat pump in a condo in Rosemont–La Petite-Patrie. A discreet, efficient, and energy-efficient HVAC solution, ideal for urban comfort, with subsidies available in Quebec.
- City
- Region
- Equipment
- Brand
- Challenges
- Published
The job on one screen
The article, chapter by chapter
An energy efficiency project in a modern space
At AirGreen , we support many Montreal clients who want to combine comfort and energy savings with efficient HVAC solutions. This project, carried out in a condo in the Rosemont–La Petite-Patrie district, perfectly illustrates the benefits of a Windair wall-mounted heat pump , carefully installed to provide an optimal indoor climate all year round.
Client context and needs
The owner, who recently moved into this modern condo, was looking for a compact, discreet, and energy-efficient solution. The main criteria were:
-
stable thermal comfort in summer and winter,
-
a quiet device, suitable for an open-plan living space,
-
an aesthetic installation , integrating harmoniously into a minimalist decor.
After a technical and energy assessment, our team recommended a 12,000 BTU Windair wall-mounted heat pump , a model known for its reliability and performance in urban residences.
Installation Steps
Strategic positioning
The indoor unit was installed on a central wall, near a wall-mounted thermostat and well away from openings (doors and windows). This choice ensures even air distribution throughout the condo and maximizes comfort throughout the space.
Preparatory work
Our technicians made a precise drilling of the exterior wall to transport:
-
refrigerant lines,
-
electrical wiring,
-
the condensate drainage pipe.
Discreet white capping has been added to the exterior, providing both protection for the pipes and a neat finish, suited to the modern style of the building.
Drainage management
The installation was designed with gravity drainage , allowing a natural and silent flow of condensation water. This avoids the addition of a pump and reduces the risk of additional maintenance.
Advantages of the Windair wall-mounted heat pump
The Windair range is a solution appreciated by our urban customers for several reasons:
-
High energy efficiency : Energy Star certified, this heat pump allows you to benefit from grant programs offered in Montreal, Laval, Longueuil, on the North Shore and the South Shore.
-
All-season performance : effective at cooling the air in summer and heating down to -25°C in winter.
-
Quiet operation : The unit is designed for quiet operation, ideal in compact spaces like condos.
-
Sleek aesthetics : its modern design fits perfectly into contemporary interiors.
Results observed after installation
Upon commissioning, the customer noted:
-
constant freshness in your living space, without annoying drafts,
-
a reduction in ambient humidity , increasing comfort in summer,
-
efficient supplementary heating in autumn and spring, reducing the use of the main heating system.
The project was completed in a single day, demonstrating the efficiency of our teams in an urban context where access and noise constraints are frequent.
Grants and support
Thanks to its energy efficiency and reliable operation in extreme cold, this Windair heat pump is eligible for provincial and federal grant programs . Our experts guided the client through the process of preparing the application, making it easier to obtain the available assistance.
AirGreen expertise in urban projects
This project in Rosemont–La Petite-Patrie demonstrates the importance of choosing an experienced HVAC installation partner. At AirGreen, we provide:
-
a detailed analysis of the needs and configuration of the premises,
-
an installation optimized to maximize performance,
-
comprehensive monitoring for maintenance and access to subsidies.
Whether you live in a condo, a single-family home or a plex, our mission is to offer you a comfortable and sustainable indoor climate, adapted to the realities of Montreal and its surrounding areas.
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.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
An on-site estimate, the right capacity, the right equipment.
The on-site estimate is free and the quote follows within 24 hours.
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).