A discreet and efficient heat pump installation for optimal comfort upstairs
At AirGreen , we recently completed a Midea wall-mounted heat pump installation in a single-family home located in Sainte-Dorothée, Laval . The client primarily wanted to improve the comfort of the upper floor —particularly in the central hallway leading to the bedrooms—while benefiting from a quiet, efficient, and energy-efficient system. With limited space at the top of the stairs, a compact, aesthetic, and safe solution was required.
An installation project adapted to the architecture of the house
The residence's central staircase presented a challenge: a narrow landing wall and sloped ceiling limited the possible locations. After a thorough inspection, our AirGreen team selected a solid wall opposite the bedrooms , ensuring even air distribution to the hallway and adjacent rooms.
The indoor unit was installed at an ideal height of 2.10 m, ensuring uniform air circulation while maintaining perfect visual discretion . The refrigerant and electrical conduits were carefully covered in white , matching the wall paint, to obtain a clean and harmonious appearance. The refrigeration lines were gravity- fed to the outdoor compressor, located at the rear of the house.
Why choose the Midea brand?
Midea is known for the robustness , reliability and energy efficiency of its appliances. For this project, we installed a Midea28 (R-454B) wall-mounted heat pump , a new generation model operating with R-454B refrigerant , which is more environmentally friendly and complies with the latest environmental standards.
This model offers:
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Exceptional energy efficiency (up to 22 SEER / 10.5 HSPF)
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Efficient heating capacity down to -30°C , ideal for Laval winters
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Inverter technology that continuously adjusts power according to demand
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Ultra-quiet operation , perfect for rest areas
Technical details of the AirGreen installation
System requirements:
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Type: Single-zone wall-mounted heat pump
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Make and model: Midea28 R-454B, 12,000 BTU
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Location: upper floor, landing wall (Sainte-Dorothée, Laval)
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Power supply: 230 V, dedicated circuit breaker
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Condensates: gravity drain to the outside
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Refrigeration lines: approximately 6 linear meters , protected wall/floor passage
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Wiring and capping: matte white , discreet and aesthetic
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Total installation time: 4 hours
Our team also carried out a complete check of the refrigeration load and the nitrogen leak rate , thus ensuring the perfect conformity of the system . The external compressor was installed on an anti-vibration slab , optimizing stability and reducing noise pollution.
Result: precise comfort and remarkable energy efficiency
Thanks to this installation, the customer now benefits from uniform comfort throughout the entire floor , with a stable temperature and precise control via the wireless remote control . The compact and modern device blends perfectly into the decor without disrupting traffic flow in the staircase.
The owner's initial feedback is eloquent:
"You no longer feel the temperature difference between the ground floor and the upper floor. The heat pump is quiet and uses very little electricity."
Energy subsidies and savings
The Midea28 R-454B is eligible for several grant programs offered by Hydro-Québec and Transition énergétique Québec , notably for its very low temperature performance and its efficiency greater than 20 SEER. This type of installation helps reduce annual operating costs while increasing the building's energy value.
AirGreen expertise: the difference you can feel
At AirGreen , every installation is carefully planned to fit your home's unique configuration . Our RBQ-certified technicians and HVAC experts ensure the highest standards of efficiency, aesthetics, and safety are met.
We support our clients at every stage:
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Free home assessment
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Selecting the optimal model
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Clean and quick installation
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Training in use and maintenance advice
This project in Sainte-Dorothée perfectly illustrates our approach: precise, aesthetic and durable work , offering the client total peace of mind for many years.
Why choose AirGreen for your HVAC installation in Laval
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RBQ certified local business
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Full warranty on parts and labor
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Expert technicians in Midea, Fujitsu, Gree, Sharp, and more heat pumps
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Fast and attentive after-sales service
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Areas served: Montreal, Laval, Longueuil, South Shore and North Shore
Whether you want to heat your floor , cool a space that is difficult to ventilate or optimize your energy efficiency , AirGreen always offers the right HVAC solution for your home .
In summary
This Midea28 wall-mounted heat pump installation in Sainte-Dorothée demonstrates our expertise in residential projects where efficiency and discretion must coexist. The result: four-season comfort , reduced energy consumption, and a perfectly integrated design.
For professional HVAC installation in Laval , trust AirGreen — your heating, ventilation and air conditioning expert in Greater Montreal.