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Installation of a Sharp Eco Inverter wall-mounted heat pump in LaSalle

AirGreen installed a Sharp Eco Inverter wall-mounted heat pump in LaSalle. A powerful and discreet HVAC solution for heating and cooling, suitable for homes in Greater Montreal.

By AirGreen Climatisation & Chauffage Admin3 min read
Installation of a Sharp Eco Inverter wall-mounted heat pump in LaSalle
Installation of a Sharp Eco Inverter wall-mounted heat pump in LaSalle
Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

An energy efficiency project perfectly integrated into a LaSalle pavilion

At AirGreen , we recently completed a Sharp Eco Inverter wall-mounted heat pump installation in a residential area of ​​LaSalle , on the island of Montreal. This project perfectly illustrates the combination of increased comfort, energy savings, and careful integration into the environment of a typical pavilion in the area.

Why choose a Sharp Eco Inverter heat pump?

The client wanted to replace an aging wall-mounted air conditioner with a more efficient, four-season solution. After a thorough needs analysis, we recommended the Sharp Eco Inverter :

  • Heating and air conditioning capacity : adapted to the ground floor area of ​​the bungalow (approximately 1,100 sq. ft.).

  • Inverter technology : fine power regulation, reduced consumption and quiet operation.

  • Plasmacluster System : Improves indoor air quality through advanced ionization.

  • Compatibility with grant programs : eligible for energy incentives offered to residents of Montreal, Laval, Longueuil, as well as the North Shore and the South Shore.

Technical details of the installation

The installation was carefully planned to minimize visual impact and optimize system performance. Here are the main steps and specific features:

  • Raised outdoor stand : The compressor has been installed on a sturdy aluminum base, ensuring protection against moisture and snow.

  • Refrigerant pipes : hidden under a discreet white cover, providing a clean and aesthetic finish on the side facade of the house.

  • Gravity drainage : the condensate system has been configured for natural flow, avoiding the need for an additional pump.

  • Proximity to the electrical panel : the power supply has been connected directly, limiting load losses and improving reliability.

  • Limited working at height : the outdoor unit has been fixed at a safe height, sufficient to clear the fan from the ground and respect ventilation clearances.

Challenges and solutions on the construction site

As is often the case with homes built decades ago in LaSalle, we encountered fragile wall plaster. To prevent further cracking during drilling, we used specialized drill bits and sealed the pipe passages with a high-performance sealant. This ensures optimal insulation and increased durability, even in the face of the freeze-thaw cycles typical of Montreal's climate.

Benefits for the customer

Thanks to this new Sharp Eco Inverter heat pump , the owner now benefits from:

  • Stable comfort, summer and winter, in his LaSalle pavilion.

  • Significant energy savings thanks to automatic power modulation.

  • Healthier indoor air, enhanced by Plasmacluster technology.

  • A discreet, solid installation designed to last.

AirGreen: local HVAC expertise

Each installation we carry out in Greater Montreal is adapted to the specific requirements of the building and the client's expectations. Whether in Montreal , Laval , Longueuil , on the North Shore or the South Shore , our teams ensure that each project meets the highest quality standards, in terms of energy performance and aesthetics.

The steps

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.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

And at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Through the seasons

    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.
    And at your place?

    Which type of equipment for your project?

    Pick what looks like your need.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.
    Going further

    Useful pages for what comes next

    GrantsAssistance programs in effectAirGreen checks your model before quoting an amount.PermitsYour city’s rulesLocation, distances, noise: what changes from city to city.InstallationOur installation serviceGreater Montréal and Montérégie.

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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).

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