Installation of a Sharp Eco Inverter wall-mounted heat pump in LaSalle
AirGreen installed a Sharp Eco Inverter wall-mounted heat pump in LaSalle. An energy-efficient HVAC solution providing heating, cooling, and air purification, ideal for Montreal, Laval, Longueuil, the North Shore, and the South Shore.
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The job on one screen

The article, chapter by chapter
An energy efficiency project in a residential area of LaSalle
At AirGreen , we regularly work in the residential areas of LaSalle to offer heating and air conditioning (HVAC) solutions tailored to the needs of homeowners. Recently, our team installed a Sharp Eco Inverter wall-mounted heat pump in a single-family home in the neighborhood, once again demonstrating our expertise in small and medium-sized residential projects.
The customer's choice, the Sharp Eco Inverter with Plasmacluster technology , combines energy efficiency and indoor comfort. Designed to withstand Quebec winters and deliver optimal performance in summer, it fits perfectly into the urban environments of Montreal and the South Shore.
Why choose the Sharp Eco Inverter wall-mounted heat pump?
The Sharp Eco Inverter is a wall-mounted heat pump popular for:
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Its Plasmacluster technology improves air quality by neutralizing bacteria and allergens.
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Its stable energy efficiency thanks to the inverter, allowing annual savings on the electricity bill.
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Its versatility : efficient heating in winter, silent air conditioning in summer.
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Its reliability and the reputation of Sharp, a recognized manufacturer in the international market.
For the LaSalle client, the goal was twofold: to reduce their dependence on traditional electric heating and improve their home's summer comfort. The Sharp Eco Inverter therefore represented an excellent compromise between performance, purchase cost, and available subsidies (particularly through provincial programs targeting efficient cooling appliances).
Steps of installation carried out by AirGreen
Site preparation and outdoor unit support
The outdoor unit was installed on a raised metal support securely attached to the concrete slab of the rear terrace. This configuration ensures:
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Better stability against vibrations.
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Protection against snow accumulation in winter.
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Simplified maintenance thanks to clear access.
Drilling and connecting refrigerant lines
A discreet hole was made in the rear wall of the house to connect the outdoor unit to the indoor wall unit. The installation was carried out with care to limit the length of the pipes, thus ensuring optimal energy efficiency and minimal pressure drop.
Condensate management and electrical wiring
Condensate drainage was configured in gravity mode, avoiding the use of an additional pump and thus reducing future maintenance costs. The electrical supply was connected close to the house's distribution panel, with a dedicated circuit breaker to ensure compliance with current electrical standards.
Results achieved and benefits for the customer
A few hours after commissioning, the owner was able to observe:
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Immediate comfort with a perfectly stable interior temperature.
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Surprisingly quiet operation , both inside and out.
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The ability to improve indoor air quality thanks to the built-in purification function.
In the medium term, the customer will also benefit from:
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Annual energy savings on Hydro-Québec bills.
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Eligibility for certain subsidies related to efficient heat pumps.
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Added value for your property , as buyers are increasingly looking for homes equipped with modern, economical HVAC systems.
AirGreen: Your trusted partner for HVAC installation in Montreal, Laval, North Shore and South Shore
This Sharp Eco Inverter heat pump installation in LaSalle is a perfect example of our approach: combining reliable, high-performance products with professional installation that meets the highest standards. At AirGreen, we support our customers every step of the way: from brand selection and BTU sizing to explaining available subsidies, installation, and after-sales service.
Whether you live in Montreal, Laval, Longueuil, the North Shore or the South Shore , our mission is simple: to offer you lasting, energy-efficient comfort with professional, transparent service tailored to your needs.
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).
