Installation of a Sharp wall-mounted heat pump in Plateau-Mont-Royal (Montreal)
In this Plateau-Mont-Royal condo, AirGreen installed a Sharp wall-mounted heat pump perfectly integrated above the window and patio door. The result: efficient air conditioning in the summer, supplemental heating in the winter, and impeccable aesthetics.
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 bright condo in the Plateau-Mont-Royal neighbourhood, the owners wanted to finally enjoy consistent comfort, summer and winter, without cluttering the space or compromising the interior design. Our AirGreen team therefore recommended and installed aSharp wall-mounted heat pump , perfectly suited to the constraints of an urban apartment with a terrace.
Context: an urban condo with few free walls
The main room opens onto an outdoor terrace through a glass door and a large window. As is often the case on the Plateau, the architect used a coffered ceiling to conceal the structural elements and the exit to the outside.
The challenges to be met:
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Very little exposed wall space
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Need to keep the passage to the terrace clear and safe
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Maintain a neat aesthetic , without any visible sheathing or pipes.
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To offer a quiet system, compatible with working from home and nighttime rest
Our mandate: to integrate a high-performance wall-mounted heat pump while respecting these architectural constraints.
Equipment choice: a high-performance Sharp wall-mounted heat pump
For this project, we installed a Sharp wall-mounted heat pump, ZHU1 series, 12,000 BTU, R-32 refrigerant .
This model is distinguished by:
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Inverter technology : the compressor modulates continuously, which reduces temperature variations and electricity consumption.
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High energy efficiency : ideal for intensive use in air conditioning in the summer and as supplementary heating during the Montreal winter.
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Very quiet operation : a crucial point in an open living space.
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R-32 refrigerant : more environmentally friendly and more efficient than traditional R-410A.
The 12,000 BTU output is perfectly sized for a main condo room with an opening to the outside, while still leaving room for maneuver on days of intense heat or cold.
Indoor unit integration: performance and discretion
Positioning above the window and door
The indoor unit was installed high up, in the center of the wall , directly on the overhang above the window and the door leading to the terrace. This choice allows for:
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Optimal air distribution throughout the room
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Avoiding direct obstacles (wall corners, shelves, furniture)
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A very clean visual result: the wall-mounted head follows the line of the existing cabinet
We paid particular attention to the clearances recommended by Sharp to facilitate air circulation and access for maintenance.
Passage of refrigeration lines and drain
Rather than running visible pipes along the walls, our technicians have:
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The existing ceiling drop was used to conceal the refrigeration pipes.
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Pay close attention to the finishing touches around the outward-facing opening.
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A condensate drain with a controlled slope was installed, preventing any risk of leakage inside.
The result: a system that is virtually invisible once installed, blending into the architecture of the condo.
Installation of the outdoor unit on the terrace
The Sharp outdoor unit was installed on the terrace, visible through the window:
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Elevated support on anti-vibration slabs to limit noise transmission and facilitate snow removal
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Respecting clearances from the brick wall and guardrails to ensure good air circulation
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Rigorous management of pipe routing, secured and protected to withstand Quebec winters
This configuration allows easy access for annual maintenance, while preserving circulation space on the terrace.
Four-season comfort in Plateau-Mont-Royal
Thanks to this Sharp wall-mounted heat pump, the occupants now benefit from:
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Efficient and rapid air conditioning during Montreal's heat waves
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An economical supplementary heating source in spring and autumn, reducing the use of electric baseboard heaters
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Drier and more comfortable air , particularly appreciated during humid periods
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It operates very discreetly: in night mode, the noise level is low enough not to disturb sleep.
The remote control allows for precise adjustment of temperatures and modes, and the system can be programmed to further optimize energy consumption.
A clean, safe and sustainable installation
As with all our projects, we have applied the AirGreen standards:
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Refrigerant charge verification and pressure tests
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Control of drain flow and insulation of connections
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Complete commissioning with detailed explanations to the customer
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Maintenance advice (filter cleaning, recommended annual maintenance, clearance around the outdoor unit in winter)
The goal: a Sharp heat pump that delivers stable performance for many years, with a risk of failure reduced to a minimum.
Why choose AirGreen for your Sharp heat pump in Plateau-Mont-Royal?
By entrusting us with this project, the owners benefited from:
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With specialized expertise in Sharp wall-mounted heat pumps
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Personalized support to choose the right power and location
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With meticulous installation , designed as much for performance as for aesthetics
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Responsive after-sales service , with access to our technical teams in case of questions or adjustments
Whether you live in Plateau-Mont-Royal or elsewhere in Greater Montreal, we can offer you a Sharp wall-mounted heat pump solution adapted to your reality: condo, apartment, single-family home or typical Montreal duplex.
Do you also want Sharp comfort at home?
If you're considering installing a Sharp wall-mounted heat pump to improve your comfort and lower your energy bills, our team would be happy to advise you. We'll analyze your space, your lifestyle, and your budget to offer you a turnkey solution that meets all standards and is ready to withstand a Quebec winter.
Contact us today for a free evaluation in Plateau-Mont-Royal and throughout Greater Montreal .
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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Every house has its constraints. We see them before we install.
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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).