Quiet and efficient comfort in the heart of a typical Montreal duplex
In the vibrant Rosemont–La Petite-Patrie neighborhood, we recently completed the installation of a Fujitsu Airstage wall-mounted heat pump , a high-performance solution designed to provide our customers with optimal comfort year-round. This project perfectly illustrates our expertise in residential HVAC installation in Montreal's mixed-frame buildings—a challenge our team has mastered for years.
The context: maximizing comfort in a limited space
The owner wanted a quiet, efficient heating and cooling solution that would fit into a duplex unit with thick walls, typical of Montreal buildings. With limited space available inside, the Fujitsu Airstage wall-mounted heat pump was the ideal solution: compact, discreet, and capable of providing stable performance even during Montreal's harsh winters.
Technical characteristics of the Fujitsu Airstage
This wall-mounted heat pump from the Airstage range offers remarkable energy efficiency thanks to its variable-speed compressor and its more environmentally friendly R-32 refrigerant . Among its strong points:
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Operation down to -26°C , ideal for the Quebec climate.
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Reduced noise level : the interior head operates almost silently, ensuring incomparable acoustic comfort.
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High energy efficiency (SEER up to 25) , helping to reduce electricity consumption.
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Minimalist design that blends harmoniously into contemporary or renovated interiors.
Installation details: precision and perfect integration
The indoor unit was installed high up on a load-bearing wall , near a window overlooking the rear facade of the building. This configuration allowed gravity drainage of the condensate , without the need for an additional pump, ensuring more reliable long-term operation.
The refrigerant connections were carefully concealed in a discreet white capping , matching the interior paint. On the outside (not visible in this photo), we fixed the condenser to galvanized wall brackets , ensuring good air circulation and protection against snow.
Technical challenges encountered
The main challenge of this project was the proximity of the external wall and the management of the crossing , given the brick structure of the building. Thanks to our experience in controlled drilling in old buildings , we were able to create a clean and watertight exit, without compromising the integrity of the wall.
We also adjusted the electrical wiring to optimize the distance between the dedicated circuit breaker and the interior head, while respecting Quebec electrical standards.
The results: immediate efficiency and comfort
From the moment it was put into service, the results were impressive: uniform air distribution , a stable temperature , and above all, a noticeable reduction in ambient noise . The Fujitsu Airstage heat pump quickly stood out for its responsiveness in heating mode and its ability to maintain indoor comfort without fluctuation.
Why choose AirGreen for a wall-mounted heat pump installation in Montreal?
At AirGreen , every HVAC installation project is handled with the highest level of rigor. We combine technical expertise , quality workmanship , and in-depth knowledge of Montreal buildings to deliver sustainable, high-performance installations.
Our customers benefit from comprehensive support — from selecting the optimal model to applying for grants (for example, through federal and provincial programs promoting energy-efficient heat pumps).
Conclusion: an exemplary installation in Rosemont
This installation of a wall-mounted Fujitsu Airstage in Rosemont–La Petite-Patrie illustrates our ongoing commitment to providing our customers with efficient, aesthetically pleasing, and sustainable HVAC solutions . Through careful planning and precise execution, we delivered a result that combines energy efficiency , visual discretion , and optimal living comfort —three pillars of our approach at AirGreen.