An HVAC installation project adapted to Montreal's harsh winters
At AirGreen , we know how challenging Montreal's climate is for heating and cooling systems. In this project in Ahuntsic-Cartierville , we installed a Gree central heat pump on the flat roof of a residential building. This configuration is particularly demanding due to winter conditions: heavy snow, ice, wind, and extreme temperature variations.
Our team designed a robust, secure installation perfectly adapted to the Montreal context, guaranteeing optimal comfort for occupants throughout the year.
Why choose a Gree central heat pump for Montreal?
The Gree brand is now one of the world's largest HVAC manufacturers, renowned for the reliability and durability of its equipment. In this case, the chosen model allows:
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Stable performance down to -25°C , suitable for Greater Montreal winters.
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Quiet and energy-efficient operation.
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Compatibility with Quebec subsidy programs (LogisVert, Transition Énergétique Québec, etc.).
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Increased durability thanks to corrosion-resistant materials, essential in environments where salt and humidity are omnipresent.
Technical features of this installation
Flat roof support
The device was installed on a raised metal structure , securely fixed and secured with chains to resist winds. This elevation allows:
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Keep the condenser above snow level.
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Ensure optimal air circulation.
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Facilitate maintenance and natural defrosting.
Routing of refrigeration pipes
Electrical conduits and wiring are protected by insulated capping along the roof, ensuring both aesthetics and mechanical protection against frost and moisture. This treatment prevents water infiltration and heat loss.
Snow and Frost Management
Montreal experiences rapid snow accumulation. To avoid obstruction of the fans, the unit is installed at a sufficient height, and the area around the condenser remains clear for proper operation in heating mode.
Security and Compliance
The entire installation complies with current electrical and mechanical standards in Quebec. Our RBQ-certified technicians oversee every detail, including:
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Sizing of cables and circuit breakers.
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Perfect alignment of refrigeration pipes.
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Commissioning with full performance testing.
Challenges encountered and solutions provided
1. Winter conditions on the day of installation
Snow on the roof made access and securing difficult. We used anti-skid devices and secured the work area to ensure the team's safety.
2. Long-term protection of the outdoor unit
To prevent premature deterioration, we applied an additional layer of anti-corrosion protection and validated the stability of the structure against freeze/thaw cycles.
3. Aesthetic and durable routing of conduits
Rather than leaving cables and pipes exposed, we opted for a protected route, guaranteeing not only better thermal performance, but also added aesthetic value for the building.
Benefits for the customer
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Year-round comfort : reliable heating in winter, efficient air conditioning in summer.
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Energy savings : reduced heating costs compared to an electric furnace alone.
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Access to subsidies : thanks to the high efficiency of the heat pump, the owner will be able to benefit from financial programs.
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Long-lasting installation : resistant to the extreme climatic conditions of Greater Montreal.
AirGreen: your HVAC partner in Montreal, Laval, North Shore and South Shore
This installation in Ahuntsic-Cartierville demonstrates our expertise in residential HVAC systems designed for the harshest winters. Whether it's a house, a plex, or a residential building, we design custom solutions that combine performance, durability, and comfort.
Our teams operate in Montreal, Laval, Longueuil, the North Shore and the South Shore , always with the same focus on quality and customer satisfaction.