In a residential area like Sainte-Dorothée , the same need often arises: to improve comfort in both summer and winter, without renovating the entire house, and especially while maintaining a reliable system when temperatures drop. It is precisely in this context that AirGreen installed aMidea wall-mounted heat pump , a compact, high-performance solution that is particularly popular in Quebec for its versatility.
The photo shows the outdoor unit (condenser) mounted on a wall bracket on a foundation wall, with careful attention paid to height , accessibility, and protection against snow and water accumulation. This type of installation is typical of homes with backyards and basement entrances, very common in Laval.
A Midea wall-mounted heat pump designed for our climate
The installed system is a Midea wall-mounted heat pump (mini-split) . In terms of product range, the most suitable choice here is a Midea28 (new generation), known for its ability to maintain stable heating even in very cold weather.
Why is this type of machine so popular in Laval?
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Heating and air conditioning with a single unit
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Room-by-room control (ideal for main floor + basement)
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Very good energy efficiency in mid-season (autumn/spring)
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Rapid comfort : temperature rises and falls more quickly than a poorly balanced central system
What the installation reveals (visible details and technical choices)
Even without seeing the internal unit, the exterior tells us a lot about how the installation was designed.
1) Elevated wall mount: a real plus in Sainte-Dorothée
We can clearly see an installation on triangulated steel supports , with the outdoor unit raised above the ground. This is excellent practice in Greater Montreal, particularly for:
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reduce the risks associated with snow and snow removal benches;
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prevent the unit from being submerged in water during thaws ;
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limit the accumulation of ice around the base;
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to facilitate cleaning and inspection.
In addition, the height chosen here protects the device from minor impacts (lawnmower, yard equipment, traffic on paving slabs).
2) Vibration and noise management
You can see pads/isolators under the unit. This is a crucial point: a wall-mounted unit can transmit vibrations to the building if vibration damping is neglected. At AirGreen, we take this seriously, especially in quiet neighborhoods like Sainte-Dorothée where acoustic comfort is just as important as performance.
3) Location: clearances and serviceability
The condenser is placed on a clear wall, with a free space in front for the fan's airflow. This is essential because:
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maintain the actual capacity of the heat pump;
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avoid air recirculation (which reduces efficiency);
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allow simple maintenance (access to panels, connections, cleaning of the coil).
4) Installation of refrigerant lines and finishing
The lines and connections are visible coming out from under the unit, with a clean finish. In a residential wall installation, the quality of the cable routing influences:
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the aesthetics (especially on the courtyard side);
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durability (protection against UV, humidity, shocks);
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performance (length, bends, insulation).
Our goal is always the same: a clean, robust and logical installation that a technician can quickly diagnose in 5 or 10 years.
Why a Midea28 is particularly relevant here
In Laval, people want a device that can deliver comfort even when winter truly sets in. A Midea28 wall-mounted heat pump is a logical choice for several reasons:
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Good heating performance in cold conditions (ideal for reducing the use of baseboards);
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Modulation : it adjusts its power instead of operating in “on or off” mode;
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Stable comfort : fewer temperature fluctuations;
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Efficiency : reduced electricity consumption over the year, especially in mid-season.
And in summer, it's the same logic: gentle, regular air conditioning that avoids the "icy draft" effect when the system is well sized and well positioned.
The typical context of a house in Sainte-Dorothée
In this sector, we frequently find:
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a house with a semi-buried basement ;
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open-plan rooms on the ground floor;
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different comfort requirements between the main floor and the basement ;
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a desire to reduce costs without undertaking major works.
This is exactly the ideal environment for a wall-mounted heat pump : comfort is quickly improved, temperature is better controlled, and efficiency is increased without transforming the entire building's mechanics.
Best practices that we systematically apply
Although each project has its own specific characteristics, here are the points that AirGreen prioritizes for this type of installation:
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Height suitable for Quebec winters (snow, ice, thaws)
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Anti-vibration to protect the wall and reduce noise
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Clearances respected for condenser breathing
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Service access : because a good system is also an easy-to-maintain system
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Durable joint finish : protection, insulation, stable fixing
Maintenance: the simple step that protects performance
A wall-mounted heat pump works hard… and accumulates dust, fine particles, and moisture over time. To maintain performance and avoid preventable problems:
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Regular cleaning of the filters (simple, quick);
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periodic professional maintenance (coil, drainage, turbine, electrical and refrigerant checks).
A clean system is a system that:
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heats up better;
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consumes less;
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lasts longer;
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with less risk of odors, water leaks and reduced yield.
In summary
This installation in Sainte-Dorothée (Laval) perfectly illustrates AirGreen's philosophy: a Midea wall-mounted heat pump installed intelligently, sustainably, and adapted to the local climate. The raised wall bracket , the logical placement, and the visible finishing details are choices that make a real difference every day—both for comfort and for the system's longevity.