Installation of a Sharp Eco Inverter wall-mounted heat pump in Rosemont
Installation of a Sharp Eco Inverter wall-mounted heat pump in Rosemont by AirGreen: four-season comfort, energy efficiency and discreet integration into a Montreal duplex.

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.
A high-performance heat pump harmoniously integrated into a Montreal duplex
At AirGreen , we recently installed a Sharp Eco Inverter wall-mounted heat pump in the Rosemont–La Petite-Patrie neighborhood, an area characterized by red brick plexes and wooden decks. The client's goal was clear: to benefit from an energy-efficient HVAC system that provides four-season comfort while blending discreetly into the architecture of their home.
Choosing the Sharp Eco Inverter
The Sharp Eco Inverter range impresses with its Plasmacluster technology , which improves air quality by neutralizing certain impurities, as well as its reliable heating capacity even in harsh Quebec temperatures. This compact wall-mounted heat pump is distinguished by:
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High energy efficiency thanks to its inverter compressor.
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An operating range adapted to Montreal winters.
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A reduced exterior noise level, appreciated in a dense residential area like Rosemont.
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Eligibility for provincial and federal grant programs , subject to Energy Star eligibility.
The Challenges of Moving into a Montreal Duplex
The installation was carried out on a rear wooden terrace , with the need for:
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Secure the outdoor unit to a raised aluminum support , allowing good stability and safe clearance from the wooden floor.
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Ensure gravity drainage of condensates , thus avoiding the need for an additional pump.
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Install discreet capping along the wall to protect the refrigeration and electrical connections, while respecting the aesthetics of the brick building.
The wiring has been designed for clean and safe integration, taking into account the proximity of the interior electrical panel.
Result: comfort, efficiency and peace of mind
At the end of the project, the client benefits from a complete system that:
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Effectively cools down Montreal's hot summers.
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Heats the main space with stable performance, even when temperatures drop well below zero.
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Contributes to significant energy savings compared to exclusively electric heating.
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Improves indoor air quality with Sharp's unique ionizing function.
AirGreen expertise in Greater Montreal
At AirGreen, each project is designed based on the building's real-world constraints and the client's expectations. In Rosemont, as elsewhere in Greater Montreal, Laval, Longueuil, the North Shore, and the South Shore , we install wall-mounted heat pumps adapted to Quebec's climate. Our team not only handles installation, but also after-sales service and HVAC maintenance , thus guaranteeing the durability of the equipment.
Practical advice for Montreal homeowners
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Height and support : Installing the heat pump on a raised surface prevents snow accumulation and extends the life of the outdoor unit.
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Quality capping : protects ducts against humidity and temperature variations.
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Regular maintenance : annual cleaning prevents dust accumulation and optimizes performance.
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Grants : Checking eligibility for the LogisVert and Greener Homes programs helps reduce the initial investment.
AirGreen, a trusted HVAC partner in Montreal
This project further demonstrates our commitment to providing reliable, efficient, and aesthetically pleasing HVAC installations throughout Greater Montreal. With a dedicated and qualified team, we ensure that every client enjoys lasting comfort and controlled energy bills .
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?
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).
