Installation of a Fujitsu wall-mounted heat pump in Plateau-Mont-Royal
AirGreen installed a Fujitsu wall-mounted heat pump in an apartment in Plateau-Mont-Royal, with careful integration above an interior door, ideal for urban dwellings with limited space.

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.
In the Plateau-Mont-Royal neighbourhood, apartments often present very specific challenges: relatively high ceilings, original moldings, narrow windows, interior glass doors, and limited available wall space. Installing a wall-mounted heat pump in this context requires careful technical and aesthetic consideration. This is precisely the type of project our AirGreen team works on every day.
In this installation, we installed a Fujitsu wall-mounted heat pump , perfectly integrated above an interior door, without compromising air circulation or the harmony of the dwelling.
A typical context for the Plateau: optimizing every centimeter
In this type of Montreal apartment, it is common to find:
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walls interrupted by doors and woodwork;
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few free surfaces for a standard wall unit;
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a need for efficient air conditioning in the summer, without altering the character of the space;
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a search for silence and constant comfort.
The choice of a Fujitsu wall-mounted heat pump was essential here because of its reliability, compact size and ability to provide precise comfort in confined spaces.
Machine type: wall-mounted heat pump (mini-split)
The visual clues are clear:
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horizontal wall-mounted indoor unit;
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motorized shutter with directional air diffusion;
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absence of conduits (solution without major work);
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concealed refrigeration connection to the outside.
This is a residential wall-mounted heat pump , ideal for condos and apartments in Plateau-Mont-Royal that do not allow the installation of central systems.
Selected model: Fujitsu wall-mounted R-32 (Altair range)
Even if the exact model is not legible in the photo, the unit corresponds perfectly to a new generation Fujitsu wall unit with R-32 , from the Altair range (e.g. Altair 300 or 500), which is very common in urban residential projects.
This type of heat pump offers, in particular:
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excellent energy efficiency;
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very quiet operation (ideal for close proximity of dwellings);
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stable temperature regulation;
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compatibility with Quebec winters, in both heating and air conditioning.
Prominent installation details observable
1) Installation above an interior door
The unit is installed above the door frame , a common solution but one that requires precision:
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minimum clearance respected for air intake and supply;
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Positioning designed to avoid direct airflow;
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harmonious integration with existing moldings.
2) Respect for interior aesthetics
In the Plateau, the visual aspect is paramount. Here:
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the unit blends discreetly into the architecture;
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no superfluous elements clutter the space;
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The finish is clean and aligned with the ceiling.
3) Technical access and security
Note the clear service area on the side of the unit, including the A2L labeling (R-32 refrigerant), which complies with current standards. This ensures:
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facilitated future maintenance;
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full compliance with safety requirements;
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an installation designed to last.
Why this type of installation is ideal in the Plateau
In areas like Plateau-Mont-Royal, Rosemont, or Villeray, a well-placed wall-mounted heat pump allows for:
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to effectively air-condition the main rooms;
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to reduce humidity in the summer;
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to provide supplementary or main heating in the fall and spring;
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to avoid major renovations on old buildings.
At AirGreen, we always adapt the location and model to the actual configuration of the accommodation, not the other way around.
Best practices for use and maintenance
To maximize lifespan and performance:
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clean the filters regularly;
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avoid obstructing air circulation (furniture, curtains);
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Use automatic modes for better stability;
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plan for periodic professional maintenance.
A well-maintained wall-mounted heat pump in a Plateau apartment provides consistent comfort without surprises.
Conclusion: a discreet and effective solution for urban environments
This installation in Plateau-Mont-Royal perfectly demonstrates how a Fujitsu wall-mounted heat pump can be integrated into a home with architectural constraints, while offering superior thermal comfort.
At AirGreen, we understand the realities of Montreal buildings and know how to get the most out of each installation, both technically and aesthetically.
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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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).
