Installation of a Zephyr wall-mounted heat pump in Plateau-Mont-Royal (Montreal): targeted comfort and smart integration
In Montreal, in the Plateau-Mont-Royal, AirGreen installed a Zephyr wall-mounted heat pump above a patio door, providing optimal heating and cooling comfort, perfectly suited to the typical architecture of the neighborhood.
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 a typical Plateau-Mont-Royal residential building, AirGreen installed a Zephyr wall-mounted heat pump to improve the thermal comfort of an apartment while respecting the architectural constraints specific to Montreal's multi-unit dwellings. This project perfectly illustrates how a wall-mounted mini-split solution can be discreetly integrated into an existing space, without compromising on performance or aesthetics.
System type: Zephyr wall-mounted heat pump (residential mini-split)
The photo clearly shows a wall-mounted indoor unit installed high up, just above a patio door. This positioning is typical of wall-mounted heat pumps and offers several practical advantages:
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efficient air distribution in the main room,
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saving floor space (ideal for urban housing),
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precise temperature control, summer and winter.
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silent operation, an essential criterion in dense environments.
Model: Zephyr new generation wall-mounted heat pump
Although the exact model isn't visible in the photo, the design—clean front panel, central digital display, adjustable air vents—matches a recent Zephyr wall-mounted heat pump , designed for residential environments in Greater Montreal. This type of unit is generally selected in a capacity appropriate to the size of the space (often between 9,000 and 18,000 BTU) to ensure:
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a rapid temperature rise in heating mode
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stable air conditioning during hot periods,
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optimized energy consumption thanks to modulation.
Prominent installation details observable
1) Positioning above an opening: strategy and effectiveness
The unit is installed above a patio door , a location frequently chosen in Plateau housing:
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allows for efficient transverse airflow,
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limits areas of direct airflow,
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utilizes an often unused space on the wall.
2) Integration into an architectural context typical of the Plateau
Outside, one can see brickwork and a metal staircase , emblematic elements of the neighborhood. The interior design was conceived to harmonize with this reality:
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neat alignment of the unit,
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Clearances respected for performance and maintenance.
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A subtle visual integration, without cluttering the space.
3) Controlled air distribution for everyday comfort
The directional louvers allow the airflow to be directed according to the season:
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In air conditioning, the air is directed to avoid discomfort near the door.
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In heating, diffusion promotes uniform heat throughout the room.
4) Adaptation to the Montreal climate
In a neighborhood like Plateau-Mont-Royal, heating needs vary greatly throughout the seasons. A properly installed Zephyr wall-mounted heat pump allows you to:
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to get through the shoulder seasons without resorting to supplementary heating,
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to maintain consistent comfort despite rapid temperature variations,
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to improve the overall energy efficiency of the dwelling.
The AirGreen approach: precision, consistency and sustainability
At AirGreen, each installation is designed according to the building , the occupants' lifestyle , and local climate conditions . For this project, this means:
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a well-considered choice of location,
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a stable and durable installation
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commissioning focused on real comfort, not just on figures.
Conclusion: a Zephyr wall lamp perfectly suited to the Plateau
This installation in Plateau-Mont-Royal demonstrates that a Zephyr wall-mounted heat pump is an ideal solution for Montreal's urban housing: compact, efficient, discreet, and capable of providing year-round comfort. When properly installed, it becomes a lasting asset for everyday living.
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?
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?
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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).