Installation of a Gree wall-mounted heat pump in Rosemont–La Petite-Patrie
Installation of a Sharp Eco Inverter wall-mounted heat pump in Rosemont. AirGreen optimizes comfort, energy efficiency, and HVAC subsidies for Montreal and the surrounding area.
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A residential project combining energy performance and harmonious integration
In the Rosemont–La Petite-Patrie borough, a client recently entrusted us with the installation of a Sharp Eco Inverter wall-mounted heat pump . This HVAC solution represents an excellent compromise between comfort, energy efficiency, and budget-friendliness. The location, a typical red brick house with a semi-buried basement, provided an ideal setting to demonstrate our expertise in residential HVAC system installation in Greater Montreal.
Sharp technology: everyday efficiency and comfort
Sharp's Eco Inverter range is distinguished by its precise regulation of power consumption and stable air diffusion. Coupled with Plasmacluster Ion technology, it ensures healthier indoor air, a criterion increasingly sought after by Montreal families. For this project, the wall-mounted heat pump allows for efficient cooling in the summer and heating in the winter , while remaining eligible for current grant programs for high-efficiency appliances.
The particularities of the installation
The installation presented several specific challenges:
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Wall mounting on sturdy brackets : the outdoor compressor has been securely fixed to the concrete foundation, raised to prevent direct contact with moisture and snow in winter.
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Proximity to the electricity meter : we have optimized the routing of the cabling in order to reduce the total length, thus limiting energy losses.
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Gravity-fed condensate management : thanks to the proper elevation of the outdoor unit and the thoughtful positioning of the drain, no additional lift pump was necessary.
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Respect for aesthetics : the discreet capping blends perfectly with the red brick facade, which was a priority for the owners.
Immediate benefits for the client
As soon as it was put into service, the results were noticed:
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Reduce your energy bill thanks to the inverter, which continuously adapts power according to demand.
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Improved indoor air quality thanks to the Plasmacluster ionizing function.
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Four-season comfort with a high-performance heat pump, even during the rapid temperature variations so typical of Montreal.
AirGreen grants and support
This type of appliance, classified as highly energy-efficient , is generally eligible for provincial and federal subsidies . At AirGreen, we always guide our clients through the process, from verifying eligibility to completing application forms. In this specific case, the client was able to benefit from a substantial credit, significantly reducing the net cost of her investment.
Why choose AirGreen for your HVAC installation in Montreal?
Experience shows that a well-designed HVAC system guarantees longevity and performance. At AirGreen, we are committed to:
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Evaluate each building accurately,
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Offer the best solution adapted to comfort and budget ,
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Installed according to the highest RBQ standards ,
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Offer comprehensive after-sales service and personalized maintenance advice.
Our expertise in Montreal neighborhoods, from Rosemont to the Plateau, including the North Shore and the South Shore, allows us to adapt our practices to local realities: urban density, climate, and architectural particularities.
Conclusion: a successful and lasting installation
This installation of a Sharp Eco Inverter in Rosemont–La Petite-Patrie perfectly illustrates our approach: combining high-performance technology, seamless integration, and customer support . The result: a home better equipped to withstand Quebec's hot summers and harsh winters, with lasting energy savings.
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).