Installation of a Sharp Eco Inverter wall-mounted heat pump in Saint-Léonard
AirGreen installs Sharp Eco Inverter wall-mounted heat pumps in Saint-Léonard. A reliable and energy-efficient HVAC solution, suitable for Montreal duplexes, with grants available.
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The article, chapter by chapter
A multi-unit installation adapted to Montreal duplexes
At AirGreen , we understand that every HVAC installation project must be designed with the building type and the occupants' lifestyle in mind. In Saint-Léonard , a residential area of Montreal known for its red brick homes and duplexes, we installed Sharp Eco Inverter wall-mounted heat pumps designed to provide long-term comfort and energy efficiency.
The client's objective was clear: to equip each home with an independent, reliable and economical system, to ensure optimal comfort in all seasons while reducing the electricity bill.
Why choose a Sharp Eco Inverter heat pump?
The Sharp Eco Inverter range is renowned for its balance between energy efficiency and reliability. This model incorporates PlasmaCluster technology, which purifies indoor air by removing allergens and impurities, while precisely regulating the temperature.
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4-season air conditioning and heating : effective even during Montreal's harsh winters.
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Inverter technology : automatically adjusts power to reduce electricity consumption.
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Quiet operation : perfect for medium-density residential buildings like in Saint-Léonard.
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Available grants : eligible for provincial and federal assistance programs for efficient heat pumps.
Technical steps of installation
The installation took our team a full day, requiring careful planning and working at height.
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Exterior mounting : Each Sharp unit has been mounted on sturdy wall brackets , ensuring long-term stability.
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Route of the connections : the refrigeration ducts were carefully covered and fixed along the brick facade, with passages crossing the walls to reach the interior heads.
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Working at height : the use of ladders and scaffolding ensured clean and safe drilling for the units installed on the upper floor.
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Condensate management : gravity drainage was preferred, avoiding the installation of additional pumps.
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Discreet finishes : the neutral-colored capping blends harmoniously into the facade, while ensuring protection of the conduits against bad weather.
Challenges encountered and solutions provided
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Limited space in the backyard : the presence of several outdoor units required a thoughtful layout to respect the recommended ventilation distances.
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Multiple holes in the brick : our technicians used specialized tools to create clean and watertight penetrations.
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Limited access to floors : the use of telescopic ladders helped avoid unnecessary clutter in the client's space while ensuring the safety of the team.
Results and benefits for the client
The customer now benefits from a high-performance, independent HVAC system for each accommodation , guaranteeing:
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Immediate comfort in summer and winter.
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A reduced electricity bill , thanks to the energy efficiency of Inverter technology.
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Improved air quality , with integrated PlasmaCluster purification.
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A discreet and harmonious installation , perfectly adapted to the architecture of the duplex.
AirGreen: HVAC expertise at your service
This project in Saint-Léonard illustrates AirGreen's ability to transform the constraints of a Montreal duplex into energy optimization opportunities. Our clients benefit not only from careful installation, but also from comprehensive support in choosing the right equipment and accessing available subsidies in Montreal, Laval, Longueuil, on the North Shore and the South Shore .
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).