Project

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.

By AirGreen Climatisation & Chauffage Admin4 min read
Installation of a Fujitsu wall-mounted heat pump in Plateau-Mont-Royal
Installation of a Fujitsu wall-mounted heat pump in Plateau-Mont-Royal
–chapters in this story
4 minreading time
–type of installation
2025year published
The tour

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.

Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

The job

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:

  • walls interrupted by doors and woodwork;

  • few free surfaces for a standard wall unit;

  • a need for efficient air conditioning in the summer, without altering the character of the space;

  • 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:

  • horizontal wall-mounted indoor unit;

  • motorized shutter with directional air diffusion;

  • absence of conduits (solution without major work);

  • 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:

  • excellent energy efficiency;

  • very quiet operation (ideal for close proximity of dwellings);

  • stable temperature regulation;

  • 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:

  • minimum clearance respected for air intake and supply;

  • Positioning designed to avoid direct airflow;

  • harmonious integration with existing moldings.

2) Respect for interior aesthetics

In the Plateau, the visual aspect is paramount. Here:

  • the unit blends discreetly into the architecture;

  • no superfluous elements clutter the space;

  • 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:

  • facilitated future maintenance;

  • full compliance with safety requirements;

  • 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:

  • to effectively air-condition the main rooms;

  • to reduce humidity in the summer;

  • to provide supplementary or main heating in the fall and spring;

  • 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:

  • clean the filters regularly;

  • avoid obstructing air circulation (furniture, curtains);

  • Use automatic modes for better stability;

  • 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 steps

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.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

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.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Going further

    Your own project, step by step

    Through the seasons

    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.
    At your place

    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.

    0 / 6 checked
    True or false

    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.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.

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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).

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