Installation of a Zephyr wall-mounted heat pump in Rosemont–La Petite-Patrie (Montreal)
In Rosemont–La Petite-Patrie, AirGreen installed a Zephyr wall-mounted heat pump that blends seamlessly into the décor. Enjoy quiet and efficient comfort, summer and winter, with a clean and well-positioned indoor installation.
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.
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 project carried out in Rosemont–La Petite-Patrie , our AirGreen team completed the indoor installation of a Zephyr wall-mounted heat pump (mini-split) to provide four-season comfort to a typical Montreal home: well-optimized spaces, careful air circulation, and the need for a quiet system that blends perfectly into the decor.
Type of system installed: wall-mounted heat pump (mini-split)
The photo clearly shows a wall-mounted indoor unit : horizontal format, air vent, temperature display (set to 18°C ), and dedicated remote control. This is therefore a Zephyr wall-mounted heat pump , an ideal solution for heating and cooling one or more rooms without major ductwork work.
Brand: Zephyr (as indicated)
The brand to use is Zephyr , and that's exactly the system we installed here. The precise model isn't legible on the unit, but the device is a new-generation Zephyr wall-mounted heat pump , designed to combine energy efficiency, comfort, and quiet operation.
Prominent installation details visible in the photo
Even inside, several important points stand out — and it is precisely the details that make the difference between a “correct” installation and a truly durable one:
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High positioning : the unit is installed near the ceiling, which promotes better air distribution in both cooling and heating, and limits cold/hot zones.
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Aesthetic integration : clean and minimalist installation, without bulky visual elements, perfectly suited to a living room.
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Actual wall constraints : the unit is placed above a large mirror and furniture, which requires special attention to clearances , shutter orientation and perceived comfort (avoiding direct airflow on occupants).
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Everyday comfort : the remote control within easy reach confirms simple, quick and intuitive use to adjust temperature, mode, speed and direction of airflow.
Why this choice works so well in Rosemont–La Petite-Patrie
In Rosemont–La Petite-Patrie, many homes are in duplexes or apartment buildings where residents want to improve comfort without altering the interior. A Zephyr wall-mounted heat pump perfectly meets this need:
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Efficient heating during the cold seasons (and very pleasant in the shoulder seasons)
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Stable air conditioning during periods of heat and humidity
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Generally very quiet operation, appreciated in living spaces
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Reduced reliance on electric baseboard heaters and improved cost management
Our AirGreen approach: performance, finish, and real comfort
At AirGreen, we don't just "install a unit on the wall." We aim for a complete solution:
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Optimized location for comfort,
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Neat installation for aesthetic reasons,
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Settings and orientation designed to suit the realities of the occupants.
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and a sustainable solution adapted to the climate of Greater Montreal.
That's exactly the spirit of this project: a Zephyr wall-mounted heat pump installed intelligently, which is forgotten... while improving daily life.
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.
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.
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.
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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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?
No question matches. Write to us: we answer.
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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).