Project

Installation of a Midea wall-mounted heat pump in Laval

AirGreen installs a Midea wall-mounted heat pump in Laval: year-round comfort, careful installation, and grants available. Expert HVAC service in Montreal, Laval, the South Shore, and the North Shore.

By AirGreen Climatisation & Chauffage Admin3 min read
Installation of a Midea wall-mounted heat pump in Laval
Installation of a Midea wall-mounted heat pump in Laval
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.

A residential installation designed for durability and efficiency

At AirGreen , we understand that every wall-mounted heat pump installation project must adapt to both the energy needs and the physical constraints of the home. In this case, our team traveled to Laval , in a typical residential area, to install a Midea wall-mounted heat pump designed to provide optimal comfort in all seasons.

This intervention perfectly illustrates our approach: rigorous, professional and focused on the long-term comfort of the occupants.


Details of equipment and model selection

The Midea heat pump installed here is a compact and efficient unit, suitable for single-family homes.

  • Capacity : 12,000 to 15,000 BTU (depending on the configuration chosen by the customer).

  • Technology : Inverter, allowing fine modulation of power and better energy efficiency.

  • Efficiency : Energy Star certified, eligible for Quebec subsidies under programs such as LogisVert and ÉcoPerformance.

  • Comfort : Efficient heating down to -25°C, quiet cooling during summer.

This choice was motivated by the search for a reliable device, capable of reducing electricity consumption while maintaining a stable temperature, whether in the middle of January or during a July heatwave.


A tailor-made installation process

The installation required precise planning in order to meet the specific constraints of the house:

  • High wall mount : The outdoor condenser has been securely fixed using galvanized wall brackets, freeing up floor space, limiting snow accumulation and ensuring optimal air circulation.

  • Electrical wiring : Connection was made via a discreet external box, complying with current electrical standards. The proximity to the panel reduced conduit length and optimized safety.

  • Protected refrigerant connections : all pipes were covered with white capping matching the brickwork of the house, ensuring a harmonious visual integration.

  • Condensate management : evacuation is carried out by gravity, avoiding the addition of a pump and thus reducing the risk of additional maintenance.


Technical challenges encountered and solutions provided

Height and access

With the outdoor unit positioned more than two meters above the ground, our team had to work with secure equipment (light scaffolding and stabilized ladders) to make the holes and secure the support.

Respect for aesthetics

The owner was keen to preserve the uniform appearance of the white brick facade, so our technicians used white covers, precisely installed to make the pipework virtually invisible.


Results for the client

Following this installation, the owner now benefits from:

  • A reliable, economical HVAC system adapted to the harsh climate of the North Shore.

  • Stable comfort all year round , with a quiet and efficient device.

  • A durable installation , designed to withstand bad weather and facilitate maintenance.

  • Increased real estate value , thanks to the discreet and professional integration of the equipment.


AirGreen: HVAC expertise serving Laval and Greater Montreal

This Midea wall-mounted heat pump installation in Laval once again demonstrates our commitment: to provide each customer with a personalized solution, combining performance, aesthetics and peace of mind.

Whether for the installation, maintenance or repair of your heating and air conditioning systems, AirGreen is your trusted partner in Montreal, Laval, Longueuil, the North Shore and the South Shore .

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

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    The on-site estimate is free and the quote follows within 24 hours.

    • RBQ licence5645-9605-01 · 15.8, 15.10, 16
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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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