Midea heat pump installed in Rosemont–La Petite-Patrie: a robust solution for 4-season comfort
AirGreen installed a Midea heat pump in Rosemont–La Petite-Patrie, mounted on a raised platform with clearances adapted to a narrow backyard. A high-performance, discreet solution designed for Montreal winters.
Take a tour of the installation
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.
In Rosemont–La Petite-Patrie, brick houses, back patios, and exterior staircases are part of the scenery… as are the HVAC challenges that come with our seasons. At AirGreen , we recently installed a Midea heat pump (outdoor unit) in a typical backyard in the area: limited space, traffic near a staircase, and the need for a reliable unit for both cooling and heating.
The client's objective was simple: to achieve stable comfort , reduce reliance on supplemental heating, and secure a clean, discreet installation adapted to Montreal winters.
The type of system: an efficient and compact residential heat pump
From the photo, it's clearly a residential heat pump with a front-mounted outdoor unit , installed on a raised base . This format is very common for wall-mounted heat pumps (mini-splits) : it offers excellent efficiency, precise zone control, and quiet operation when properly positioned.
This is exactly the kind of device that is suitable for homes in Rosemont: single-family homes, plexes, two-story condos, where an efficient solution is needed without redoing the entire distribution of conduits.
Brand: Midea (as requested)
The brand to use here is Midea , and that's very good news: Midea has carved out a solid place in residential heating thanks to high-performance, modern appliances that are well-suited to the Quebec climate when you choose the right range.
Selected model: Midea28 (consistent with the installation)
The model is not directly visible in the photo, but the configuration and positioning correspond very well to a new generation Midea wall-mounted heat pump installation, and at AirGreen we often favour a range of the Midea28 type, known for its heating capacity in winter conditions and its stability in defrost mode.
Without overloading with figures, remember this: what matters is not just the BTU “on paper”, but the actual heating capacity when it is cold , and the quality of the installation (clearances, drainage, support, vibrations, etc.).
Observable installation details: what was done (and why)
In the photo, several good technical choices stand out — and they have a direct impact on long-term reliability.
1) Elevated support: essential in Montreal
The outdoor unit is installed on a raised metal stand . In winter, this is a major consideration:
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This prevents snow from accumulating and blocking the interchange.
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This reduces the risk of ice buildup at the bottom of the device.
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The defrosting process is improved (the water can drain properly)
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We extend the lifespan by limiting corrosion and exposure to puddles.
In a neighborhood like Rosemont, where backyards can be damp, shaded, or cluttered, this elevation is often the difference between a machine that lasts... and a machine that suffers.
2) Position near the staircase: managing clearances and airflow
The unit is located near an exterior staircase and platform. When space is limited, our job is to respect:
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minimum clearances for air intake and exhaust
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traffic flow around the unit (avoid the “cage” effect)
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reducing turbulence that can impair efficiency and increase noise
Here, the location is intelligent: the unit is oriented so as to breathe properly despite the context, while remaining accessible for maintenance.
3) Vibration and noise management
A properly installed heat pump is audible (or rather… almost inaudible). With this type of installation, we always plan for:
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anti-vibration pads
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Stable, twist-free attachment
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Level check (important for defrost drainage)
Result: less resonance in the structure, and more comfort for the occupants — especially when the unit is working in heating mode in cold weather.
4) Protection against leaves and debris: an underestimated issue
You can clearly see leaves on the ground around the installation (typical in autumn). It seems harmless… until it isn't.
Our advice (and the advice we always follow):
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keep a clear perimeter around the unit
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prevent leaves from accumulating near the exchanger
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Plan for periodic cleaning, especially before winter and in spring.
A heat pump performs better when it breathes better. Simple, but crucial.
Why this installation is particularly well-suited to Rosemont–La Petite-Patrie
The houses in this area often have one thing in common: they want comfort, but without compromising on aesthetics and space .
A well-integrated Midea wall-mounted heat pump allows for:
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to effectively air-condition during heat waves
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to heat a good part of the cold season
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to reduce energy bills by decreasing the use of direct electric heating
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to improve comfort room by room, without major renovations
And most importantly: with an elevated, well-cleared and well-stabilized installation, we increase reliability in real-world conditions — those we experience here, not those of a laboratory.
Our AirGreen approach: clean, sustainable, and performance-oriented installation
When we install a heat pump, our priority isn't just to "make it work." We aim to:
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the actual return (not just the advertised return)
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longevity (support, drainage, clearances, protection)
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everyday comfort (noise, diffusion, stability)
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future maintenance (access, cleaning, inspection)
This is exactly what we look for in a typical Montreal backyard: a solution that respects the space… and that survives the winter without surprises.
Recommended maintenance: the key to keeping Midea performance at its best
Even an excellent heat pump loses efficiency if it is not maintained. For this type of installation, we recommend:
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seasonal inspection and light cleaning (debris, leaves, clearings)
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Periodic more thorough cleaning (depending on use and environment)
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Check the defrost drainage system before the onset of severe cold.
A clean device = better heat transfer = less effort = less wear.
The big day, step by step
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 would it look like at your place?
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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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).