Installation of a Sharp wall-mounted heat pump in Plateau-Mont-Royal
AirGreen installed a Sharp wall-mounted heat pump in Plateau-Mont-Royal: a discreet, efficient solution perfectly suited to Montreal apartments.
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 the Plateau-Mont-Royal neighbourhood , our AirGreen team installed aSharp wall-mounted heat pump in a typical neighbourhood apartment: standard ceilings, closely spaced load-bearing walls, and an interior layout requiring efficient air distribution without encroaching on living space. This type of installation demands precision, an aesthetic sense, and a perfect understanding of urban constraints—exactly our specialty.
A Sharp wall-mounted heat pump suitable for Plateau homes
The installed unit is a Sharp wall-mounted heat pump , from the Sharp ZU1 range, renowned for its reliability and performance in both heating and cooling. This model uses R-32 refrigerant , which is more environmentally friendly and fully compliant with current standards.
In Plateau-Mont-Royal homes, which often lack central ducts, the wall-mounted heat pump (mini-split) is an ideal solution: it allows precise temperature control while remaining discreet and quiet.
Key details of the interior installation
The photo clearly shows the Sharp indoor unit, installed high on an interior wall above a window, a common configuration in Montreal apartments. This strategic position offers several advantages:
-
Uniform air distribution in the main room
-
Optimizing wall space is essential in urban housing.
-
Reduction of noise pollution , thanks to thoughtful positioning
The unit is perfectly level, with a meticulous finish and precise alignment, ensuring both performance and aesthetics. The refrigerant lines have been routed discreetly while facilitating future maintenance.
Four-season comfort, summer and winter
The Sharp ZU1 wall-mounted heat pump installed in Plateau-Mont-Royal allows the client to benefit from:
-
efficient heating during Montreal winters , even in sub-zero temperatures;
-
quiet and fast air conditioning in summer ;
-
optimized energy consumption , contributing to better control of electricity costs.
Thanks to Sharp's Inverter technology, the heat pump automatically adjusts its power according to actual needs, avoiding abrupt cycles and ensuring constant comfort.
Why choose AirGreen for an installation in Plateau-Mont-Royal?
At AirGreen , we have an intimate understanding of the realities of buildings in the Plateau-Mont-Royal area: closely spaced load-bearing walls, atypical interior layouts, and high standards for quiet operation and aesthetics. Each installation is custom-designed.
Our expertise with Sharp wall-mounted heat pumps allows us to offer consistent, durable solutions perfectly suited to the Montreal urban lifestyle.
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.
Which type of equipment for your project?
Pick what looks like your need.
Four mistakes we do not make
Flip each card to see what we do instead.
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.
Useful pages for what comes next
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
Tell us about your house. We come and see it for free.
The on-site estimate is free and the quote follows within 24 hours.
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).