Year-round indoor comfort thanks to multizone technology built for Montréal’s climate
In a region like Montréal, where harsh winters meet increasingly hot and humid summers, managing a building’s thermal comfort isn’t a luxury—it’s a necessity. At AirGreen, we’ve been installing high-performance multizone heat pumps for years, capable of tackling the specific climate challenges across the North Shore, South Shore, Laval, and Longueuil. Thanks to our expertise, we provide long-lasting, energy-efficient solutions for both residential and commercial needs, while optimizing energy use and indoor air quality.
Understanding the multizone heat pump: a flexible solution for varied needs
A multizone heat pump, unlike a single-zone unit, allows multiple indoor wall (or recessed) units to connect to a single outdoor compressor. This means every room or zone in a home can be heated or cooled independently, with precise temperature control.
The benefits are numerous:
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Personalized comfort in every room
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Lower energy costs by heating or cooling only the spaces being used
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Discreet and stylish design with compact, quiet indoor units
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Adaptability for residential, commercial, or multi-unit properties
Summer and winter: built to perform in extreme weather
Withstanding harsh winter cold
In the Montréal area, winter temperatures often dip well below -20 °C. Modern multizone heat pumps, like the Fujitsu Airstage, Gree Multi+, or Mitsubishi Zuba models, are designed to operate efficiently down to -30 °C, without any major drop in performance.
Our installations include:
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Elevated outdoor units to prevent snow buildup
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Precisely insulated piping to avoid heat loss
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Smart defrost systems, limiting downtime in freezing conditions
We recently completed an installation in Bois-des-Filion (North Shore), where a client wanted to replace their energy-hungry electric heating with a greener solution. We recommended a Fujitsu 36,000 BTU multizone heat pump, with three wall units in the living room, master bedroom, and office. In addition to providing steady heating throughout the winter, the system reduced her energy bill by over 40%.
Delivering comfort during heatwaves
Quebec summers are increasingly marked by heatwaves. A multizone heat pump also acts as a central air conditioner, maintaining a comfortable indoor temperature—even when it’s over 30 °C outside.
Thanks to Inverter technology and smart airflow distribution, sun-exposed areas stay cool without producing uncomfortable cold drafts. In a recent project in Longueuil, in a duplex, we installed a Gree Multi+ with four zones. The tenant on the ground floor immediately noticed the difference: “The air is more stable, more comfortable, and we sleep better at night.”
What sets an AirGreen installation apart
Full thermal assessment of the building
Before any installation, we conduct a custom evaluation of the home’s heating and cooling needs, which includes:
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The total square footage to cover
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Existing insulation quality
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Sun exposure
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Number of occupants
This approach helps avoid common mistakes like over- or under-sizing the heat pump, ensuring optimal year-round performance.
Choosing the right unit for each zone
We work with several trusted brands, including:
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Fujitsu (KAGH / KZAH models known for cold-weather performance)
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Gree (the Multi+ line, eligible for LogisVert rebates)
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Mitsubishi (especially the Zuba Multi, built for Canadian climates)
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Bosch BOVA (ideal for larger homes needing consistent comfort)
Each installed wall unit is selected based on the specific heating or cooling needs of the room. For example, a 7,000 BTU unit for a closed bedroom, versus 12,000 to 18,000 BTU for a spacious living room.
Rebates and administrative support
We help our clients access available financial aid programs, such as:
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Hydro-Québec’s LogisVert Program (up to $5,000 depending on the setup)
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Rénoclimat Program for energy-efficient renovations
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Federal Green Renovation Tax Credit
Our team handles the estimate, paperwork, and follow-up, making the process quick and easy for homeowners.
What to avoid when choosing a multizone heat pump
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Installing a system that’s too powerful or undersized, which leads to wasted energy
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Neglecting maintenance, especially cleaning filters and coils
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Choosing a model not designed for Québec winters, which could freeze in deep cold
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Hiring an uncertified installer, risking the loss of equipment warranty
At AirGreen, we continuously train our technicians and only use parts that meet current Canadian standards.
A real example: Multizone installation in Laval
A couple living in Laval recently contacted us to improve the comfort of their bungalow while reducing energy costs. Their home had an old electric convection system. We installed a Gree Multi+ 42,000 BTU multizone heat pump, with four wall units.
Results:
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Even temperature throughout the house
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35% drop in their Hydro bill
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Eligibility for a $4,404 rebate
They especially appreciated the quiet operation of the units and AirGreen’s responsive customer service.
Why choose AirGreen for your multizone heat pump installation in Montréal?
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Local expertise: tailored installations for the climate in Montréal, Laval, Longueuil, North Shore, and South Shore
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Personalized service from assessment to maintenance
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Certified technicians with ongoing training
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Direct access to top brands and the most reliable models
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Full support for securing available rebates
We firmly believe that comfort should never be compromised by the weather. With our multizone solutions, you enjoy a pleasant indoor environment year-round, while keeping energy costs in check and contributing to a more sustainable future.