Midea wall-mounted heat pump installation in Sainte-Rose (Laval): a reliable solution for Quebec winters
In Sainte-Rose (Laval), AirGreen installed a Midea wall-mounted Midea28 heat pump on a raised wall bracket, ensuring optimal clearance despite the snow, stable performance in winter and four-season comfort for the home.
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The article, chapter by chapter
In Sainte-Rose , a peaceful residential area of Laval comprised mainly of single-family homes with landscaped yards, thermal comfort must be predictable, robust, and adapted to harsh winters . In this project, our AirGreen team installed aMidea wall-mounted heat pump , paying particular attention to snow management , airflow , and the stability of the outdoor unit .
The result is a clean installation, well integrated into the building and designed to operate efficiently all year round, even during periods of extreme cold.
The system installed: Midea wall-mounted heat pump
The selected system type is a wall-mounted heat pump (mini-split) , an ideal solution in a residential context like that of Sainte-Rose when one wants to:
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Improve the overall comfort of your home without major renovations
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Reduce reliance on traditional electric heating
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Enjoy efficient air conditioning during the summer
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To obtain a silent and modulating system
The Midea brand , supplied manually and used as the primary reference, is known for offering high-performance heat pumps well-suited to the Greater Montreal climate. For this type of configuration, the model is consistent with the Midea28 range, a new-generation wall-mounted heat pump designed to maintain good performance even in demanding winter conditions.
Visual analysis of the outdoor installation
The photo highlights several key elements that demonstrate a well-thought-out installation that complies with AirGreen's best practices.
Outdoor unit on raised wall bracket
The unit is mounted on a metal wall bracket , securely anchored to the foundation. This configuration is essential in Laval for:
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Avoid snow accumulation under the device
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Reducing risks associated with ice and de-icing water
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Protect the unit from soil moisture and freeze/thaw cycles
Clearance from the snow-covered ground
The presence of snow on the ground, visible in the photo, perfectly illustrates why an elevated installation is crucial. Even in the depths of winter, the unit maintains sufficient airflow , which allows for:
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Optimal heat exchange
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More efficient defrosting
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Stable heating performance
Discreet and well-integrated installation
The unit is positioned against a side wall of the house, between trimmed conifers. This placement allows for:
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Minimize the visual impact
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Preserve the aesthetics of the land
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Limit direct exposure to prevailing winds
Clean and protected conduit routing
The refrigeration and electrical connections are installed neatly, with a clear route into the building. Careful installation protects the components from the elements and facilitates long-term maintenance.
Why a Midea wall-mounted heat pump is a good choice in Sainte-Rose
In an area like Sainte-Rose, where homes are often heated with electricity, a wall-mounted heat pump allows you to:
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Reduce heating costs by using energy from the outside air
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Maintain a stable temperature in the main living areas
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Improve comfort during periods of intense cold
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To provide efficient and quiet air conditioning during the summer
The Midea28 range is particularly appreciated for its ability to operate reliably in harsh weather conditions, which perfectly matches the winter realities of Laval.
The AirGreen standards applied to this project
Each installation carried out by AirGreen follows a rigorous methodology:
Performance and durability
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Compliance with recommended clearances
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Robust and vibration-resistant mounting
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Optimized positioning for air circulation
Safety and maintenance
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Easy access to the unit for future maintenance
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Protection against ice buildup
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Reducing the risk of winter damage
Building integration
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Aesthetically pleasing and discreet installation
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Respect for the existing landscape environment
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Clean and professional finish
Recommended maintenance to ensure the longevity of the system
To maintain optimal performance:
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Clean the indoor unit filters regularly
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Ensure that snow and ice never block the outdoor unit
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Schedule a periodic professional interview
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Check the clearance around the device, especially after storms.
Proper maintenance prolongs the life of the heat pump and ensures consistent comfort.
Conclusion: A successful Midea installation in Sainte-Rose
This Midea wall-mounted heat pump installation in Sainte-Rose (Laval) perfectly illustrates the AirGreen approach: a solution adapted to the Quebec climate, an elevated installation designed for winter, and harmonious integration into the building. The client now benefits from a reliable, efficient, and comfortable system, both summer and winter.
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).