Installation of a Sharp wall-mounted heat pump in Rosemont
AirGreen installed a Sharp wall-mounted heat pump in Rosemont. A powerful and discreet HVAC solution, suitable for Montreal duplexes, for efficient heating and cooling.
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The job on one screen
The article, chapter by chapter
Optimize comfort in a brick duplex in the heart of Montreal
At AirGreen , we understand that every building has its own unique character and challenges. In the Rosemont–La Petite-Patrie neighborhood, the typical red brick buildings, often converted into duplexes or triplexes, require tailored HVAC solutions. The recent installation of a Sharp wall-mounted heat pump is a perfect example of how to combine energy efficiency, discreet aesthetics, and compliance with the structural constraints specific to this urban area.
Client context and needs
The owner of this duplex wanted a reliable four-season heating and cooling solution that would work efficiently in Montreal's bitterly cold weather. The main criteria:
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Maintain optimal comfort indoors, summer and winter.
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Reduce dependence on energy-intensive electric heating systems.
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Ensure a durable, safe and visually harmonious installation with the brick facade.
Choosing the Sharp heat pump
The Sharp line is renowned for its reliability and adaptability to Quebec winters. The selected model meets the following criteria:
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Heating and air conditioning capacity adapted to the living area of the accommodation.
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High energy performance , with a design thought for cold climates.
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Compatibility with Quebec grant programs for high-efficiency heat pumps.
Technical features of the installation
Installing a heat pump in a dense urban environment imposes several constraints that our technicians must anticipate and resolve.
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Reinforced wall bracket
The outdoor unit is fixed on a metal support at height, allowing:-
to free up floor space,
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to protect the device against snow and ice in winter,
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to ensure optimal air circulation.
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Wiring and piping covered
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The passage of the refrigerant pipes required the installation of dark brown capping , integrated into the brick facade to limit the visual impact.
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The electrical connection is secured with an external box that complies with standards.
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Intervention height
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The vertical route of the piping, over nearly two floors, required precise and safe work.
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Our teams used robust anchors to ensure a lasting hold despite climatic variations.
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Condensate drainage
In this specific case, drainage could be carried out by gravity, avoiding the installation of a lifting pump and simplifying future maintenance.
Results for the client
Once the heat pump was put into service, the owner immediately noticed:
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A reduction in your energy bill thanks to the high efficiency of the device.
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Constant indoor comfort , even during sudden drops in temperature in the evening.
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An aesthetically discreet installation, respecting the character of the building.
Why choose AirGreen in Rosemont and elsewhere in Montreal
This project demonstrates our teams' expertise in the urban environments of Greater Montreal . With hundreds of successful installations in Montreal, Laval, Longueuil, on the North Shore and the South Shore , AirGreen has established itself as a trusted partner for all your HVAC installation needs.
We provide:
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A personalized analysis of your energy needs.
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Advice on models and grants available.
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Facilities that meet the highest industry standards.
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Rigorous after-sales support to extend the life of your equipment.
Conclusion
Installing a Sharp wall-mounted heat pump in a brick duplex in Rosemont perfectly illustrates AirGreen's added value: combining technical expertise, aesthetics, and energy performance . Our clients benefit from lasting comfort and substantial savings, while respecting the architectural charm of their building.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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).