Installation of a Sharp wall-mounted heat pump in Rosemont–La Petite-Patrie (Montreal)
Installation of a Sharp Eco Inverter wall-mounted heat pump in Rosemont–La Petite-Patrie, Montreal. AirGreen offers a high-performance, four-season solution on a raised wall bracket, ideal for Quebec's climate.
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In this project in Rosemont–La Petite-Patrie , Montreal, our AirGreen team modernized the comfort of a brick house by installing a Sharp Eco Inverter wall-mounted heat pump . The client's objective was clear: to have a reliable and economical system for heating and cooling the house, while maintaining a clean, safe, and durable outdoor installation for Montreal winters.
A typically Montreal context
The residence is a brick row house with an exposed concrete foundation and a narrow backyard, typical of Rosemont–La Petite-Patrie. The constraints were as follows:
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Optimize the already limited ground space in the courtyard.
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Protect the equipment from snow and ice accumulation.
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Minimize noise for immediate neighbors.
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Ensure an installation that meets standards, is aesthetically pleasing and easily accessible for maintenance.
After analyzing the thermal load and the occupants' lifestyle, we recommended a Sharp Eco Inverter wall-mounted heat pump, model Sharp ZHU1 12,000 BTU , perfectly suited to a main living area (living room, dining room, kitchen).
Why choose the Sharp Eco Inverter wall-mounted heat pump?
The Sharp brand is renowned for its cutting-edge technologies in residential air conditioning and heating. The Eco Inverter range offers an excellent balance between performance, energy consumption, and acoustic comfort.
The main advantages of this house in Rosemont–La Petite-Patrie:
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Inverter technology : the heat pump continuously adjusts its power according to the actual demand, which ensures a more stable temperature and better energy efficiency.
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Heating mode for Quebec climate : when properly sized, the Sharp ZHU1 heat pump is capable of providing comfortable heat for much of the winter, significantly reducing the electricity bill.
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Quiet operation : the outdoor unit, with its large fan and protective grille, is designed to limit noise, which is essential in a dense area like Rosemont.
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Plasmacluster Ion Technology : on the interior part, this purification technology helps to improve air quality by reducing dust and allergens.
A raised wall-mounted installation: designed for winter
The photo clearly shows the Sharp heat pump mounted on a brick wall, above the concrete slab , using a galvanized steel wall bracket . This type of mounting is not a minor detail; it is an integral part of the unit's performance and durability.
1. Protection against snow and ice
By raising the unit:
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We protect it from snowbanks created by clearing snow from the yard or from the roof collapsing.
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We reduce the risk of the fan being blocked by ice or blown snow.
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We facilitate the drainage of defrost water, which can accumulate under the unit during defrost cycles in winter.
The result: a heat pump that defrosts properly, remains functional, and offers better performance even in cold weather.
2. Stability and safety
The wall mount is:
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Securely anchored in the brick , with mechanical anchors adapted to the weight of the device.
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Equipped with leveling screws to keep the unit perfectly horizontal, which is essential for compressor operation and condensate drainage.
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Designed to absorb some of the vibrations and withstand freeze/thaw cycles.
We always ensure that the installation height complies with standards and allows safe access for maintenance.
3. Clearances and air circulation
The Sharp heat pump is installed at a sufficient distance from the wall to:
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Allow good air circulation around the unit.
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Avoid recirculating hot air in heating mode, as this could decrease the system's efficiency.
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Facilitate the cleaning of the coils and the ventilation grille.
These details are essential to preserve the seasonal yield (SEER/HSPF) advertised by the manufacturer.
Electrical and refrigeration connections: cleanliness and compliance
Beneath the unit, the concrete foundation and a flat surface, which facilitates the connection work, are clearly visible. Our technicians have:
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Install a disconnect (safety switch) near the unit, as required by electrical standards.
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Route the refrigeration lines and power cable in an orderly manner, with appropriate fixings to avoid any chafing or pinching.
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Pressures were checked, a vacuum was evacuated from the lines and a leak test was performed before commissioning.
This rigor is directly reflected in the reliability of the system and the validity of the manufacturer's warranty.
Four-season comfort for the occupants
Inside, the Sharp wall-mounted unit paired with this Eco Inverter condenser offers:
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Fast and gentle air conditioning in the summer , ideal for the heat waves of July and August in Montreal.
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A very effective supplementary heating source during the shoulder seasons and for a good part of the winter, which reduces the load on electric baseboard heaters or any other existing system.
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Precise temperature control , thanks to the integrated thermostat and the different modes (heating, cooling, dehumidification, ventilation).
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Improved air quality , especially for occupants sensitive to allergens.
Owners thus benefit from constant comfort, while reducing their energy costs.
AirGreen support: from advice to maintenance
At AirGreen, we don't just install units: we support our clients from the beginning to the end of the project.
For this installation in Rosemont–La Petite-Patrie, our team has:
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Analyzed the needs : room size, insulation, orientation, windows.
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Recommended Sharp wall-mounted heat pump capacity to avoid oversizing or undersizing.
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The installation was planned to respect the aesthetics of the facade and the constraints of the neighborhood.
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The device was put into service with all necessary tests (electrical and refrigeration).
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Proposed a periodic maintenance plan including cleaning of filters, inspection of the outdoor unit and verification of operating parameters.
This support is the best guarantee of performance and peace of mind for owners.
Do you live in Montreal or Greater Montreal? We can do the same thing for you.
Whether you are in Rosemont–La Petite-Patrie, Villeray, Ahuntsic, Laval or on the South Shore , we install Sharp wall-mounted heat pumps and other major brands adapted to the Quebec climate.
You wish to:
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Replacing an old wall-mounted air conditioner with a more efficient heat pump?
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Reduce your electricity bills while gaining comfort?
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Enjoy a clean, safe installation designed for winter?
Contact us. At AirGreen, we would be happy to analyze your project and offer you a turnkey solution, like this Sharp Eco Inverter wall-mounted heat pump installation in Rosemont–La Petite-Patrie .
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).