A strategic installation for optimal comfort in a stairwell
At AirGreen , we understand how every corner of a home can present a unique challenge for even temperature distribution. In Sainte-Dorothée (Laval) , our team recently installed a Midea wall-mounted heat pump to optimize the comfort of an upper floor often exposed to heat fluctuations, particularly in a central stairwell .
Context of the intervention
The client contacted us after noticing that her upper floor was becoming stuffy on hot days, despite an aging central air conditioning system on the ground floor. The goal was clear: to efficiently cool the upper floor without renovating the existing system , while maintaining minimal energy consumption .
The layout of the space—a staircase leading to an open hallway—provided an ideal location for a Midea wall-mounted unit . Thanks to the height and natural air circulation in the stairwell, temperature distribution is even, both in cooling and heating mode.
Appliance Choice: Midea 12,000 BTU
We recommended and installed a Midea 12,000 BTU wall-mounted heat pump , a model known for its reliability , remarkable quietness and superior energy performance . This model is perfectly suited to rooms of 400 to 600 sq. ft., making it an ideal solution for a residential floor.
Main features:
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Inverter technology for stable and efficient performance.
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High-performance heat and cool mode down to -25°C.
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Advanced filtration for cleaner indoor air.
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Ultra-quiet operation , perfect for breakout areas.
Installation Steps
Our team of AirGreen certified technicians carried out a complete and discreet installation , respecting all electrical and HVAC standards in force in Quebec.
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Load-bearing wall assessment : The wall above the stairs was inspected to ensure solid support and adequate slope for condensate drainage.
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Drilling and sealing : We drilled a minimal passage for the refrigerant and electrical lines, carefully sealed to prevent any air infiltration.
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Outdoor unit installation : positioned outdoors, on an anti-vibration support, to reduce noise and facilitate maintenance.
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Connection and vacuuming of the refrigerant circuit : an essential step guaranteeing perfect sealing and long-lasting performance .
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Calibration and performance testing : We performed a full heating and cooling cycle to validate performance.
An immediate and measurable result
Upon switching on, the customer noted rapid and balanced air distribution throughout the floor, including into adjacent bedrooms. The temperature dropped from 28°C to 22°C in less than 20 minutes, with no noticeable drafts. In heating mode, the performance was equally impressive, providing gentle, consistent heat, even in areas far from the unit.
Long-term benefits
Thanks to this installation, the house now benefits from:
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A significant reduction in energy consumption during summer and winter.
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Increased comfort at all levels.
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An independent, easy-to-maintain and discreet system .
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A full AirGreen warranty , including parts, labor and fast after-sales service.
A smart choice for stairs and open areas
Installing a wall-mounted heat pump in a stairwell is an often underestimated strategy. This positioning takes advantage of the natural stratification of hot and cold air , allowing the unit to efficiently regulate the entire upper floor . At AirGreen, we always adapt our recommendations to the building's architecture, taking into account airflow, brightness, and the actual needs of each client.
Conclusion: Midea performance that lives up to AirGreen comfort
This installation in Sainte-Dorothée perfectly illustrates the AirGreen philosophy: tailor-made HVAC solutions , combining technology, aesthetics and efficiency. By choosing a Midea wall-mounted heat pump , our client now benefits from optimal comfort all year round, with controlled energy consumption and assured peace of mind.