In the Plateau-Mont-Royal neighbourhood , you often come across charming apartments… but they're technically demanding: compact kitchens, old walls, cabinets reaching the ceiling, and very few “perfect” spots for a wall-mounted unit. This is exactly the context of this AirGreen project: the installation of a Sharp ZU1 wall-mounted heat pump in a kitchen where space was at a premium, with one major constraint—integrating the unit above the refrigerator , just below the cabinets.
This type of installation may seem simple at first glance (a wall head and an outdoor unit), but in reality, this is often where expertise makes all the difference: air circulation , drain management , pipe routing , finishing , and above all… real daily comfort .
Why a Sharp wall-mounted heat pump in a Plateau apartment?
The Plateau is a mix of duplexes/triples, renovated units, and converted condos. Many properties lack central ductwork, and residents are looking for a solution.
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effective for air conditioning during the humid periods of the Montreal summer
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efficient for heating during the shoulder seasons (and part of the winter, depending on the configuration)
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Quiet, for open spaces and apartments with close living areas
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compact, because every square meter counts
The Sharp ZU1 (ECO Inverter) is a logical choice in this type of environment. Inverter technology allows for continuous power adjustment, which helps maintain a stable temperature, providing a more consistent feeling of comfort than a system that constantly starts and stops.
An installation in the kitchen: the “above the fridge” challenge
The photo shows a Sharp wall-mounted head installed just below some cabinets, above a stainless steel refrigerator. Open or partially finished wall areas are also visible around the location—typical of an installation where cables need to be run and then neatly closed up .
The main constraints in this type of location
In a kitchen, and even more so above a refrigerator, several realities must be managed:
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Minimum ceiling clearance (cabinets)
A wall unit needs to breathe. If the space above it is too cramped, air intake is less efficient, which can reduce performance, increase noise, or create a less pleasant air distribution. -
Obstacles in front of the unit (refrigerator, passageway)
The refrigerator can influence air circulation, especially if the unit blows air directly into a very small area. The goal is for the air to circulate throughout the living area, not just in the kitchen. -
Condensate management (drain)
In air conditioning, a wall-mounted unit produces water. A well-designed drain is necessary: correct slope, insulation if required, and a path that avoids "bowels" (low points) which can cause backflow or dripping. -
Aesthetics and finish
On the Plateau, a clean result is often desired: well-aligned pipe covers, discreet drilling, neat joints, and a final look that respects the style of the accommodation.
The AirGreen approach: creating “small spaces” without compromise
When the ideal location doesn't exist, our role is to create the best possible scenario.
1) Precise positioning of the wall-mounted head
We install the unit for:
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maximize air circulation despite the cabinets
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Avoid blowing directly onto an area you constantly pass through (comfort).
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facilitate maintenance (access to filters and cleaning)
In a kitchen, we also think about odors and suspended grease: clean filters and regular maintenance become even more important.
2) Refrigerant line routing: robust, discreet, durable
On this type of construction site, the pipes must be:
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protected (to avoid friction/abrasion)
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well insulated (performance + anti-condensation)
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installed with clean curves (no unnecessary stress)
The photo suggests a wall worked around the location, which is common when lines need to be routed in a more “invisible” way and then closed up.
3) Drain: zero improvisation
A poorly designed drain is the number one source of problems after installation (drips, stains, odors, backups). We pay particular attention to:
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the slope continues
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securing the route
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Blockage prevention (depending on the environment)
In a kitchen, you don't want to "live with a bucket". You want it to work without having to think about it.
4) Finishes adapted to Montreal housing
Old walls (plaster, laths, irregular surfaces) require more precision. The goal is a clean, aligned result that is consistent with the decor — even if the house is 80 years old.
Real comfort: what the Sharp ZU1 brings to everyday life
A properly installed wall-mounted heat pump isn't just about "cool air in the summer." In a Plateau apartment, the goal is to:
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stable air conditioning during periods of heat and humidity
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an improvement in comfort during the mid-seasons (autumn/spring), when central heating is unavailable or limited
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a more uniform temperature feeling, especially if the living area is open (kitchen/living room)
Inverter technology helps avoid harsh cycles. The result: gentler comfort, better efficiency, and often the impression of a “smarter” system.
Points to consider (and honest advice) for a wall unit in the kitchen
We like to be transparent: a wall unit above a refrigerator isn't the "perfect" location on paper. But it can work very well if you follow certain best practices:
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Keep the filters clean (the kitchen gets dirty faster).
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Avoid blocking the unit with objects stacked on top of the fridge.
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ensure that air can circulate to the rest of the dwelling (doors, corridors, layout)
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Schedule periodic maintenance to preserve performance and air quality
This is exactly the type of project where a "quick and dirty" installation gives an average result... whereas a well-thought-out installation provides a pleasant system for years.
A typical Plateau project, executed methodically
This construction site illustrates well what can be found everywhere on the Plateau-Mont-Royal and in neighbouring areas such as Rosemont–La Petite-Patrie or Villeray : restricted spaces, finishing constraints, and the need to optimize every detail.
At AirGreen, we install Sharp wall-mounted heat pumps with consideration for the building, lifestyle, and the realities of Quebec winters. Because ultimately, what matters isn't just the machine: it's the comfort you experience every day.