Four-season comfort in the heart of Montreal thanks to Sharp performance
At AirGreen , we recently installed a Sharp ZHU1 wall-mounted heat pump in a charming apartment in the Rosemont–La Petite-Patrie neighborhood, an area where indoor comfort and energy efficiency are priorities for many residents. This typically Montreal building, with its balconies overlooking the snowy street and its load-bearing concrete walls, required a careful and tailored approach to ensure optimal performance while respecting the aesthetics of the apartment.
A wall installation adapted to the urban environment
The project involved the installation of a Sharp ZHU1 12,000 BTU single-zone wall-mounted heat pump , a compact model operating on R-32 refrigerant , known for its low-temperature performance (down to −25°C) and superior energy efficiency.
The indoor unit was installed above a large patio door leading to the balcony—an ideal location for even air distribution and easy access to the outdoor unit. The refrigeration and electrical connection , carefully capped at the top, runs along the ceiling before joining the exterior wall via a discreet opening . This configuration minimizes the visual impact while optimizing gravity drainage of condensate.
Technical details and particularities of the installation
Our certified technicians took care of:
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Use electrical wiring sheathed and hidden under beige molding, for a harmonious look with light walls;
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Make a precise wall drilling to avoid any heat loss and ensure a perfect seal;
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Install a gravity condensate line , eliminating the need for a pump and reducing the risk of noise;
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Check the electrical conformity and the rating of the dedicated circuit breaker;
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Carry out a complete pressure and leak test before commissioning.
Everything was completed in half a day, ensuring minimal disruption to the customer while ensuring optimal energy efficiency from the first start-up.
Why choose the Sharp ZHU1
The Sharp ZHU1 is one of the new generations of wall-mounted heat pumps using R-32 refrigerant, a more environmentally friendly and efficient gas than R-410A. This model combines a discreet design with exceptional energy efficiency (SEER 22 / HSPF 12) , offering:
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Efficient heating down to −25°C;
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A quiet mode ideal for bedrooms or open-plan spaces;
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A smart remote control and Wi-Fi compatibility for remote control;
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Multi-stage filtration contributing to indoor air quality.
This system fully meets provincial grant programs for high-performance heat pumps, such as Chauffez vert and Rénoclimat , allowing owners to save up to several hundred dollars.
The challenges encountered and the AirGreen solution
One of the main challenges of this installation was the configuration of the accommodation , typical of Montreal apartments: plastered ceiling, limited access to the load-bearing wall, and the obligation to preserve the watertightness of the facade.
Our technicians opted for a high route along the ceiling before the exit to the balcony, a solution which allows both to keep the structure intact and to ensure natural evacuation of condensates .
This approach clearly demonstrates the AirGreen philosophy: adapting each project to the realities of housing, without compromising on quality or aesthetics.
Long-lasting comfort, signed AirGreen
As soon as I started it up, I immediately felt the difference:
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Stable and uniform comfort throughout the space;
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Almost silent operation , even in heating mode in cold weather;
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A significant reduction in electricity consumption , confirmed by the customer from the first weeks.
This installation perfectly illustrates our expertise in high-performance HVAC solutions for Greater Montreal . Whether for a condo, a duplex or a single-family home, AirGreen ensures a clean, compliant and durable installation , always adapted to your space and your needs.
AirGreen: Your trusted HVAC partner in Montreal, Laval and the South Shore
Our team of experts specializes in the installation, repair and maintenance of wall-mounted and central heat pumps from well-known brands such as Sharp, Gree, Fujitsu, Midea and Lennox .
Each project is accompanied by a complete technical evaluation, personalized monitoring and compliance with the strictest standards of the RBQ and the CCQ .
Thanks to our active presence in Montreal, Laval, Longueuil, the North Shore and the South Shore , we guarantee rapid and effective interventions, regardless of the season.
By choosing AirGreen, you are opting for lasting comfort, proven efficiency and an installation carried out according to the rules of the art.