Installation of a Sharp wall-mounted heat pump in Southwest Montreal
AirGreen installed a Sharp wall-mounted heat pump in a modern condo in Southwest Montreal, under a high window. The result: year-round comfort, better temperature control, and an aesthetically pleasing integration that perfectly complements the apartment's clean lines.

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, located in a modern condo in Southwest Montreal , our AirGreen team was tasked with ensuring year-round comfort in a bright, high-ceilinged room that was difficult to maintain at a stable temperature. The space, situated on the upper floor, features a narrow, high window and pristine white walls: the perfect location for aSharp wall-mounted heat pump , provided it is carefully integrated.
We therefore installed a Sharp TU 12,000 BTU wall-mounted heat pump , a compact, efficient solution perfectly suited to the recent condos in this rapidly changing area.
A bright condo, but prone to temperature fluctuations
Southwest Montreal is characterized by a combination of repurposed industrial buildings and new construction. Here, the client lives in a recently built condo with:
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high ceilings
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A horizontal window in the upper part , which lets in a lot of light.
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White walls that reflect natural light
but also :
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a significant increase in heat during the summer due to sunshine,
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a feeling of cold near the walls during the windiest winter days.
The original electric heating was no longer sufficient to provide the desired comfort, especially in this room used both as a bedroom and a home office . The client wanted:
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a silent system,
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capable of providing efficient heating in winter ,
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to cool down quickly in the summer ,
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while maintaining a clean aesthetic compatible with the minimalist style of the condo.
The chosen solution: Sharp TU wall-mounted heat pump
After a detailed assessment of the heating requirements and room layout, we recommended:
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System type: Single-zone wall-mounted heat pump (mini-split)
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Brand: Sharp
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Model: Sharp TU 12,000 BTU, R-32 refrigerant
This model stands out because of:
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excellent energy efficiency , ideal for reducing electricity costs;
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stable performance during the typical cold winters of Montreal;
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a very efficient air conditioning function , particularly useful in condos with lots of windows;
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ultra-quiet operation , perfect for a bedroom or office.
Indoor unit integration: under the window, at the correct height
The photo shows the Sharp wall unit installed directly under the high window. The louvers are open, indicating that the system is working and distributing air into the room. This positioning was carefully chosen for several reasons:
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Optimizing air circulation
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Installed in the upper part, the heat pump allows for good circulation of the hot air accumulated near the ceiling.
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In air conditioning mode, the cool air is efficiently distributed throughout the room, without direct drafts on the bed or workstation.
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Respect for aesthetics and architectural lines
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The unit follows the line of the window and integrates with the modern design of the wall.
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The white of the device blends in with the paint, giving an impression of visual continuity.
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Intelligent use of space
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The area under the window is not very usable for furniture; installing the heat pump there therefore frees up the rest of the walls for storage or decoration.
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The indicator lights on the right side of the unit allow the customer to immediately see the operating status, while the simple and smooth front panel remains discreet even when the device is in operation.
Technical details and installation constraints
Installing a Sharp wall-mounted heat pump in this condo in the Southwest required managing several technical aspects:
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Significant mounting height
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The unit is located near the ceiling, under the high window.
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We used a precise fixing template to ensure perfect leveling, despite the height.
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Passage of refrigerant lines
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The refrigerant pipes, wiring and condensate drain are run behind the unit, then guided outwards with a discreet finishing cover (not visible in the photo, opposite side).
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This route was studied to minimize the length of the links , which improves the overall efficiency of the system.
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Condensate management in air conditioning
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A drain was installed with an adequate slope to remove the water produced in air conditioning mode, preventing any trace of moisture on the wall.
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Depending on the configuration, a condensate pump may be provided, but in this case, gravity was sufficient.
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Compliance with electrical standards
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The Sharp outdoor condenser was connected to a dedicated circuit, in accordance with the Quebec Electrical Code.
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Communication between the indoor and outdoor units was verified with comprehensive tests during commissioning.
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Implementation steps by AirGreen
As with all our wall-mounted heat pump projects, we followed a structured process:
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Analysis and dimensioning
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Calculation of thermal load based on volume, orientation and level of insulation.
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Feasibility check (location for the indoor unit and the outdoor unit on the balcony or on the facade).
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Site planning
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Choosing the wall under the high window to take advantage of natural air circulation.
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Validation with the client of the visual rendering and future constraints (curtains, furniture, etc.).
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Installation of the Sharp TU indoor unit
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Securing the mounting plate to a solid support.
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Installation of the unit, connection of the links, mechanical testing.
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Installation of the outdoor condenser
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Place the Sharp outdoor unit on a stable and clear surface, with clearances in accordance with the instructions.
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Protection against snow and ice where relevant (raised support, clearance on the air exhaust side).
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Vacuum sealing and testing
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Vacuuming the refrigeration circuit.
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Leak testing and validation of the R-32 refrigerant charge.
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Commissioning and customer training
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Explanation of the different modes: Heat (heating) , Cool (air conditioning) , Dry (dehumidification) , Fan (ventilation) and Auto .
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Tips for getting the most out of your heat pump: recommended temperatures, programming, basic maintenance (cleaning the filters).
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Benefits for the client in this Southwest condo
Since the installation of the Sharp TU 12,000 BTU wall-mounted heat pump , the customer has been enjoying:
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A stable temperature in all seasons : less overheating in summer and more “cold spots” in winter.
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Cleaner and drier air , particularly welcome during periods of high humidity.
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Very quiet operation , compatible with teleworking and sleep.
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Energy savings compared to traditional electric heating, thanks to the high efficiency of the heat pump.
The unit blends perfectly into the modern decor of the condo: the presence of the tall window and the white wall highlights the simplicity of the Sharp line, without giving an impression of overload.
Why trust AirGreen for your Sharp heat pump?
By choosing AirGreen for your Sharp wall-mounted heat pump project in Greater Montreal, you benefit from:
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with specialized expertise in residential HVAC , adapted to condos, plexes and single-family homes;
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honest recommendations on power and model based on your reality;
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a careful installation , respectful of your interior and the building envelope;
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comprehensive support : usage advice, maintenance, after-sales support.
Whether you are in the Southwest, Verdun, Rosemont, Ville-Marie or on the South Shore, we put the same level of rigor and professionalism into every Sharp wall-mounted heat pump installation.
Conclusion
This project in Southwest Montreal demonstrates how a well-sized Sharp wall-mounted heat pump , installed in the right place, can transform a bright but difficult-to-air-condition condo into a comfortable space 12 months a year.
If you are also considering improving your comfort while reducing your energy bill, our AirGreen team will be happy to assess your home and offer you the Sharp heat pump best suited to your needs.
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).
