A powerful and elegant HVAC solution for high-ceiling spaces
At AirGreen, we recently completed the installation of a SHARP Dual-Zone wall-mounted heat pump (BU model) in a home located in Laval, specifically in a cathedral-style stairwell. This type of setting often presents unique challenges in terms of air circulation and thermal comfort. Thanks to our expertise in HVAC installation in Laval, we were able to provide our client with a highly efficient and aesthetically integrated solution.
A complex environment: cathedral-style stairwell
Cathedral stairwells present a vertical configuration that makes air distribution more difficult, especially during extreme heat or cold. The choice of the SHARP BU Dual-Zone wall-mounted heat pump proved to be a strategic one for meeting these specific demands.
Equipped with Plasmacluster technology, this unit not only cools or heats large volumes of air quickly, but also purifies the ambient air by eliminating viruses, bacteria, mold, and allergens through a patented system of positive and negative ions.
Technical features of the SHARP BU wall-mounted heat pump installed
The BU model used for this installation is a dual-zone unit, connected to an AE-X3M24BU outdoor unit. Here are some relevant specs:
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Cooling capacity: up to 27,000 BTU/h
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Heating capacity: up to 30,000 BTU/h
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Performance at -27°C: up to 14,600 BTU/h (certified extreme cold heating)
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Energy efficiency: SEER 24 / EER 14 / HSPF up to 12
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Eco-friendly refrigerant: R-32, with low global warming potential
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Sound level: as low as 23 dB(A) in silent mode
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Coanda airflow: allows smooth and even circulation
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Built-in Wi-Fi for smart remote control
Specific advantages for this installation in Laval
Uniform air distribution in a large-volume space
SHARP’s “Multi Space” system enables continuous and intelligent ventilation, ideal for open and high-ceiling spaces like stairwells. The airflow reach of up to 50 feet ensures complete coverage, from ceiling to ground level.
No direct airflow on occupants
Thanks to the Coanda effect, cold air in summer and warm air in winter is redirected along surfaces, avoiding discomfort from direct air blasts.
Discreet and elegant design
The indoor unit blends seamlessly into the décor. Strategically positioned above the stairwell, it respects the home’s aesthetics while ensuring optimal comfort. It’s a prime example of a high-performance and visually pleasing HVAC solution.
Challenges encountered during installation
Complex height access
Installed over three meters off the ground in a stairwell, the setup required the use of secure scaffolding and precise access methods. Our certified technicians followed strict safety protocols to ensure a flawless installation.
Management of refrigerant line lengths
Since it’s a dual-zone system, we carefully planned the routing of the refrigerant lines to minimize energy loss while respecting the home’s architectural layout.
Invisible electrical integration
Special attention was given to concealing power cables, keeping them hidden within the walls. All wiring complies with Quebec’s electrical code.
Warranty and peace of mind
This installation is covered by a 10-year warranty on the compressor, 10 years on parts, and 10 years on labor, offered by SHARP (conditions apply). Such comprehensive coverage is rare in the market and demonstrates the quality of SHARP products and AirGreen’s confidence in its installations.
Why choose AirGreen for your HVAC needs in Laval?
For several years, we’ve served Laval with heating, air conditioning, and air purification solutions tailored to Quebec’s climate. Our certified technicians evaluate every project thoroughly and install only dependable, energy-efficient systems.
We stand out thanks to:
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Advanced technical expertise in wall-mounted and central heat pumps
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Personalized customer service throughout the entire project
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In-depth knowledge of available government grants
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Clean, fast, and guaranteed installations
A SHARP dual-zone heat pump in Laval: the right choice
This Laval project demonstrates the advantage of combining Japanese technology, thermal comfort, and air purification into a single heat pump system. Thanks to the SHARP BU Dual-Zone wall-mounted heat pump, our client now enjoys year-round comfort, even in a hard-to-regulate space.
For all your heat pump projects in Laval, Montreal, Longueuil, the North Shore or South Shore, trust AirGreen — experts who understand your needs and deliver results that exceed expectations.
