Installation of a Fujitsu wall-mounted heat pump in Rosemont–La Petite-Patrie
In Rosemont–La Petite-Patrie, AirGreen installed a Fujitsu wall-mounted heat pump with an outdoor unit on a raised support, ideal for urban backyards and Quebec's winter conditions.
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 Rosemont–La Petite-Patrie, backyards are often compact, bordered by shared fences and brick facades. For this residential project, our AirGreen team completed the installation of a Fujitsu wall-mounted heat pump , with an outdoor unit mounted on a raised platform , perfectly suited to this type of dense urban environment.
Project context: urban backyard and limited space
The photo illustrates a typical Rosemont property: brick wall, side siding, chain-link fence, and limited access. In this context, every installation decision matters. The objective was clear: to ensure the heat pump's performance while protecting the equipment and respecting the available space.
The chosen system: Fujitsu wall-mounted heat pump
We installed a Fujitsu wall-mounted heat pump (mini-split) , an ideal solution for Montreal homes and duplexes without existing ventilation ducts. This type of system offers:
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efficient heating in winter ,
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stable and quiet air conditioning in the summer .
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excellent energy efficiency ,
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precise control of interior comfort.
Installed model (consistent with the Fujitsu range)
Since the exact model is not legible on the outdoor unit, this installation corresponds to a Fujitsu Orion XLTH (KZAH series – R-32) , known for its performance in Quebec's cold climate , with reliable heating capacity even during extreme cold.
Prominent installation details observable
1) Outdoor unit on a raised support
The outdoor unit is installed on a raised aluminum bracket , securely fixed to a stable base. This choice offers several key advantages in Montreal:
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protection against snow accumulation in winter,
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reduction of risks associated with stagnant water and freezing,
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improved air circulation around the condenser,
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easy long-term maintenance.
2) Clearances respected despite the limited space
Even in a narrow backyard, we made sure to respect the clearances recommended by Fujitsu , ensuring optimal performance and increased system longevity.
3) Clean and safe electrical connection
Note the weatherproof electrical box and the neat, compliant wiring. A well-executed installation is also a matter of safety and long-term reliability.
4) Discreet and functional installation
The unit is positioned so as not to obstruct traffic, while remaining accessible for maintenance. This type of placement is particularly important in neighborhoods where outdoor space is precious.
Why this configuration is ideal in Rosemont–La Petite-Patrie
In this residential area of Montreal, a heat pump must be:
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robust enough to withstand harsh winters ,
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compact and discreet ,
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suitable for urban backyards ,
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reliable in the long term.
The Fujitsu wall-mounted heat pump + raised support combination perfectly meets these requirements, while offering constant comfort to the occupants.
AirGreen best practices for this type of installation
To maintain system performance:
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Keep the outdoor unit clear of leaves and debris.
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Regularly check the condition of the support and fixings.
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clean the filters of the indoor unit,
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Schedule annual preventative maintenance to maximize the lifespan of the heat pump.
A project true to the AirGreen approach
This installation in Rosemont–La Petite-Patrie exemplifies our approach: HVAC solutions tailored to the building's specific context , designed for Quebec's climate, and meticulously executed. A properly installed heat pump is more than just a machine… it provides lasting comfort, summer and winter.
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?
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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).