Installation of a Zephyr wall-mounted heat pump in Rosemont–La Petite-Patrie (Montreal)
Discover this Zephyr wall-mounted heat pump installation in Rosemont–La Petite-Patrie. A high-performance and aesthetically pleasing solution, ideal for residential comfort in Montreal's urban environment.
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 this residential project in Rosemont–La Petite-Patrie , our AirGreen team completed the installation of a Zephyr wall-mounted heat pump , a solution perfectly suited to the plexes and urban buildings typical of this Montreal area. The goal: to provide optimal comfort in both summer and winter, while respecting the architectural and aesthetic constraints of the existing building.
A Zephyr wall-mounted heat pump adapted to the Montreal urban environment
The installed system is a Zephyr brand wall-mounted heat pump (mini-split) , chosen for its reliability, compact size, and excellent energy efficiency in Quebec's climate. Although the exact model is not visually identifiable, it is a new-generation Zephyr wall-mounted heat pump , designed for residential heating and cooling in high-density urban environments.
This type of unit is particularly popular in Rosemont–La Petite-Patrie, where brick buildings with rear access and exterior stairs require discreet, efficient and durable HVAC solutions.
Key details of the outdoor installation
The Zephyr outdoor unit was installed high up on a galvanized steel wall bracket , securely anchored to the rear masonry of the building. This configuration offers several advantages:
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Increased protection against snow and ice buildup in winter
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Reduction of vibrations and noise transmitted to the structure
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Preserving ground space in a small backyard
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Improved equipment durability against the elements
The refrigerant lines and electrical wiring were carefully routed along the brick wall, with a clean and discreet finish that blends seamlessly into the existing environment. The installation takes into account the proximity of the exterior metal staircases, typical of Montreal buildings, while ensuring optimal ventilation of the unit.
Interior comfort and four-season performance
Inside, the Zephyr wall-mounted unit ensures even air distribution , whether in cooling mode during the summer heat or in heating mode during Montreal's harsh winters. Zephyr wall-mounted heat pumps are known for:
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Their silent operation
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Their ability to maintain a stable temperature
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Their high energy efficiency reduces electricity costs.
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Their compatibility with the needs of urban housing (condos, duplexes, triplexes)
This system represents an excellent alternative to older electric appliances or window air conditioners, both in terms of comfort and aesthetics.
An installation designed according to the rules of the art
At AirGreen , every Zephyr wall-mounted heat pump installation is carried out according to the best practices in the HVAC industry in Quebec. In this project in Rosemont–La Petite-Patrie, we paid particular attention to:
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The strategic location of the outdoor unit
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The strength of the anchors in the brick
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Sealing the perforations
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Electrical and mechanical compliance
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Respecting the building's appearance
Our turnkey approach guarantees not only system performance, but also longevity and customer peace of mind.
Why choose a Zephyr wall-mounted heat pump with AirGreen?
Choosing a Zephyr wall-mounted heat pump installed by AirGreen means choosing:
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A proven solution for Montreal's climate
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A clean, safe and sustainable installation
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Optimal comfort all year round
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An experienced local team specializing in residential HVAC in Greater Montreal
Whether in Rosemont–La Petite-Patrie, elsewhere in Montreal, in Laval or on the South Shore and the North Shore, we adapt each project to the realities of the building and the real needs of the occupants.
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).