A discreet and efficient energy-efficient upgrade in a typical Montreal duplex
In the vibrant Rosemont–La Petite-Patrie neighborhood, known for its red brick facades and charming green alleyways, our AirGreen team recently installed a Sharp ZU1 wall-mounted heat pump . The client's goal: to modernize their heating and air conditioning system while reducing their annual energy consumption.
This installation perfectly illustrates our approach: performance, durability and harmonious integration into Montreal's residential environment.
A project designed for four-season comfort
The client, who owns a brick duplex, was looking for a simple, quiet solution that would maintain consistent comfort even during harsh winters. The Sharp ZU1 was the ideal choice:
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R-32 technology, more ecological and efficient;
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High energy efficiency (up to −25°C without power loss);
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Ultra-quiet operation, essential in dense residential areas;
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Compact design adapted to the restricted outdoor spaces typical of Montreal alleys.
An installation optimized for sustainability
We chose to raise the outdoor unit onto a sturdy metal structure fixed to a concrete slab. This installation ensures:
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protection against snow and humidity ,
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optimal air circulation ,
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and easy maintenance throughout the year.
The refrigerant lines were carefully insulated and ducted into a discreet conduit, matching the building's brickwork. Gravity drainage was favored thanks to the slight natural slope of the land, ensuring free flow of condensate without the need for an additional pump.
Challenges and solutions
The main challenge of this project was the narrow configuration of the side yard . The space between the fence and the wall left only minimal room for the condenser installation.
Our technicians have:
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Optimized the unit's orientation angle to maximize hot air dissipation;
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Secure the fixings using stainless steel anchors resistant to freeze and thaw cycles;
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Preserve the client's existing plantings by adapting the wiring and hood layout.
This precision of execution illustrates our commitment to careful, clean and durable work .
Daily performance and efficiency
Since commissioning, the customer has benefited from stable and energy-efficient comfort :
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Uniform temperature throughout the accommodation;
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Reduced electricity costs;
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Significant noise reduction compared to the old air conditioner.
The Sharp ZU1 is Energy Star® certified, making it eligible for certain grants offered to Quebec homeowners as part of energy efficiency programs.
An AirGreen installation: the difference is felt
At AirGreen, each project is treated with personalized attention . Our certified technicians ensure compliance with the strictest HVAC standards , while adapting each installation to the architectural realities of Greater Montreal.
This achievement in Rosemont–La Petite-Patrie demonstrates our expertise in:
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the harmonious integration of modern HVAC equipment into existing buildings,
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mastery of urban constraints ,
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and the implementation of sustainable and aesthetic solutions.
In summary
The installation of this Sharp ZU1 wall-mounted heat pump perfectly illustrates the AirGreen philosophy :
combine performance, design and durability to improve the residential comfort of Montrealers, while reducing their energy footprint.
AirGreen – Your trusted HVAC installation partner in Montreal, Laval, Longueuil, North Shore and South Shore.