Installation of a Zephyr wall-mounted heat pump in Villeray–Saint-Michel–Parc-Extension: precise comfort above a patio door
AirGreen installed a Zephyr wall-mounted heat pump in Villeray–Saint-Michel–Parc-Extension, high above a patio door. Precise positioning, efficient air distribution, and a clean finish ensure lasting comfort in Montreal.
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 Villeray–Saint-Michel–Parc-Extension apartment, people want immediate comfort, but they also have to contend with a distinctly Montreal reality: rooms that are sometimes long, large windows, a patio door in the center of the living area… and few “perfect” spots for a wall-mounted unit. This is precisely the context of this project, where AirGreen installed a Zephyr wall-mounted heat pump high up, directly above a large window, to provide efficient heating and cooling without cluttering the space.
The photo clearly shows the Zephyr logo on the front of the indoor unit, the illuminated display (temperature set to 16°C ), and its position very close to the ceiling. The vertical blinds beneath the unit confirm that this is a strategic location: perfect for air circulation… provided the installation details are properly understood.
System type: wall-mounted heat pump (mini-split)
This is a wall-mounted heat pump (mini-split / wall unit) , a particularly logical choice for residential use in Montreal:
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Stable cooling in summer , even during very humid periods
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Efficient heating in the mid-seasons and winter (depending on the configuration and capacity chosen)
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Precise temperature control , room by room
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Higher energy efficiency than many conventional electrical solutions
It is also an ideal option when you do not want to add ducts or modify the internal layout.
Brand: Zephyr (brand name provided manually)
The brand to use here is Zephyr , and we consider it the primary reference for the installed system. At AirGreen, we often encounter this type of unit in projects where a simple, clean, discreet wall-mounted solution is desired, with convenient daily control.
Model: Zephyr (exact model not visible in the photo)
The exact model is not visible in the image (technical label and full reference not shown). In this case, we remain consistent and professional: it is a Zephyr wall-mounted heat pump from the residential range , chosen to be installed above an opening and ensure efficient air distribution in the main room.
The salient installation details: what the photo reveals
1) Installation above a patio door: a demanding location
Installing a wall-mounted light fixture above a patio door is very common… but never “ordinary”. It requires, among other things:
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Respect the necessary clearances for air intake and the supply damper.
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prevent the airflow from directly hitting the occupants (sofa, table, dining area)
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Take into account vertical blinds , which can react to the breeze if their orientation is not properly adjusted.
In this project, the height and alignment of the unit allow for more even diffusion, while limiting the visual impact in the room.
2) Very high position, close to the ceiling: better air circulation
Positioning it near the ceiling promotes:
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improved air stratification and circulation
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more consistent comfort, particularly with air conditioning
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Space saving: no conflict with furniture, frames, curtains, or passageways
This is an approach we often favour in Montreal apartments, as it combines performance and discreet integration.
3) Drainage management: essential in this type of environment
When a unit is installed in a living area, above an opening, the drainage must be impeccable:
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adequate slope of the condensate drain
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protection against odor backflow and water accumulation
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clean passage to the outside, with careful sealing
This is a key point to avoid drips, stains on the wall, and long-term moisture problems.
4) Finish and aesthetics: a "clean" result that is evident in everyday life
A wall-mounted heat pump is something we see every day. Here, the unit is perfectly integrated into a highly visible area of the house. Our approach at AirGreen always aims to:
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a perfectly straight and stable pose
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a crisp rendering around the pipe passages
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a commissioning process that prioritizes silence , stability and comfort
Why this configuration works very well in Greater Montreal
In a home where a large window is the defining feature of the room, placing the wall-mounted heat pump in that location allows for:
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to quickly address heat gain near windows in the summer
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to improve overall heating comfort (better air distribution in the living area)
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to maintain a flexible interior layout (no appliances on the floor, no wasted space)
This is a concrete example of an installation designed for real life: practical, aesthetic and efficient.
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).