In the Plateau-Mont-Royal neighbourhood , every HVAC installation has to contend with a well-known reality: narrow backyards, old brick walls, sometimes limited access, and the need to protect equipment from moisture, snow, and impacts. In this project, our AirGreen team installed aSharp wall-mounted heat pump , with an outdoor unit strategically positioned on a raised base at the foot of a wooden balcony structure—a typical Montreal configuration, and perfectly logical when a durable installation is desired.
A perfectly suited residential system: wall-mounted heat pump (mini-split)
The installed unit is a wall-mounted heat pump (mini-split/wall unit) . It's one of the best formats for the Plateau, as it allows for:
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to avoid adding ducts to buildings that are often already optimized down to the centimeter,
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to provide quick comfort in the main rooms,
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to achieve precise control (stable temperature, better humidity management),
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and to reduce reliance on traditional electric heating.
The Sharp brand is a consistent choice for this type of project: its Eco Inverter technology aims for efficient modulation, thermal stability and discreet operation — qualities appreciated in dense environments, where backyards and balconies are shared or close together.
Selected model: Sharp ZU1 (R-32 wall-mounted range)
Based on the brand provided (Sharp) and the format observed (compact outdoor unit + typical mini-split wall head), the Sharp ZU1 model is the most consistent in your reference: a range designed for residential use, available in standard capacities (12k to 24k BTU) and designed to perform in our conditions.
Why the Sharp ZU1 is relevant on the Plateau:
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Year-round heating and air conditioning
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Inverter technology : fewer cycles, greater stability, improved efficiency
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R-32 refrigerant , more modern and efficient
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Noise level controlled , important in a dense backyard
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Compact size , ideal when floor space is limited
Key installation details: raised base, brick surroundings, balcony structure
The photo shows an installed Sharp outdoor unit:
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on a raised metal base , with anti-vibration pads at the support points,
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against a brick wall , typical of the buildings on the Plateau,
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near a wooden balcony/terrace , which requires special attention to vibrations, air vents and accessibility.
This type of setup is an excellent practice in urban environments, especially in winter.
The technical points we are targeting in this type of installation
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Elevation : limits the risks associated with snow accumulation, stagnant water and freeze/thaw cycles.
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Stability and leveling : essential to reduce mechanical stress (and therefore increase longevity).
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Anti-vibration : reduces the transmission of vibrations to the ground and adjacent structures (balcony, joists, walls).
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Air clearances : even in a tight courtyard, the unit must breathe properly to maintain its performance.
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Environmental protection : brick walls, moisture and debris — all of this requires a clean and sustainable installation.
On the Plateau, the “detail” of a raised base often makes the difference between a machine that remains stable and quiet for years… and an installation that becomes problematic after one or two winters.
An installation designed for comfort… and for Quebec winters
When installing a wall-mounted heat pump on the Plateau, you don't just think about July air conditioning: you also think about February, the snowfall, the humidity, the thaws, and then the return of frost.
A properly installed Sharp Eco Inverter allows you to:
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efficient heating for a large part of the winter (depending on the size and insulation),
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stable air conditioning in summer without unpleasant "cold shocks",
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better humidity management , very useful in brick dwellings which are sometimes more sensitive to variations.
AirGreen on the Plateau: field expertise
Plateau-Mont-Royal is one of the areas where experience counts the most. The constraints are real: narrow passageways, stairs, backyards, close neighbors, old brick buildings, balconies, etc. Our approach is therefore very practical:
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We choose installation configurations adapted to the site ,
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We emphasize durability (elevation, anti-vibration, stability),
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We aim for a clean and aesthetically pleasing installation.
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and we are thinking from the outset about future maintenance and winter performance.
Conclusion: A Sharp heat pump installed “properly”, for the Plateau
This Sharp wall-mounted heat pump installation (ZU1 model) in Plateau-Mont-Royal perfectly illustrates what we do at AirGreen: install a high-performance system, but above all, install it intelligently — taking into account the brick, the balcony, the space, and Quebec winters.