A smart energy transition with the multizone heat pump
At AirGreen, we firmly believe that residential or commercial comfort should never come at the expense of the environment. In a context where reducing the carbon footprint is becoming a major issue in Montréal, Laval, Longueuil, on the North Shore and the South Shore, we promote an innovative, sustainable, and high-performance solution: the multizone heat pump. This centralized heating and air conditioning system, using a single outdoor unit to power multiple indoor units, helps optimize energy consumption while providing unmatched comfort in every room.
Why choose a multizone heat pump in Montréal?
The multizone heat pump is ideal for multi-story homes, duplexes, large condos, or small businesses with separate areas. This system allows you to control the temperature independently in each room or floor, offering not only personalized comfort but also a significant reduction in energy consumption.
For example, if certain areas of your home are not used during the day (upstairs bedrooms, basement, etc.), you can lower the heating or cooling in those areas, thereby reducing your energy bills and environmental impact.
Case Study: Installation of a Gree multizone heat pump in Rosemont, Montréal
Recently, our certified technicians completed the installation of a Gree MultiZone system in a family home located in Rosemont–La Petite-Patrie, Montréal. The client was looking for a more eco-friendly alternative to their old natural gas system, while wanting precise temperature control on each floor.
Technical details of the installation
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Brand and model: Gree Multi+ Ultra
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Total capacity: 36,000 BTU (divided among 4 indoor units of 9,000 BTU each)
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Coefficient of Performance (COP): 4.2
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Eligibility for grants: Yes – Hydro-Québec's LogisVert program and federal grant
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Zones served: Living room, kitchen, two upstairs bedrooms
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Type of building: Century-old house with thick load-bearing walls and older windows
Challenges encountered
One of the main challenges was the house’s older layout. The plaster walls and tight spaces made it difficult to install the refrigerant lines. Additionally, the client wanted to minimize indoor visual impact, requiring careful choices for the unit placements.
Thanks to our technical expertise and meticulous planning, we were able to seamlessly integrate the wall units without affecting the home’s aesthetics, all while ensuring optimal performance.
How does the multizone heat pump reduce your carbon footprint?
The ecological benefits of this type of HVAC system are based on several factors:
1. Reduction in fossil fuel consumption
By replacing natural gas or oil systems, the heat pump runs entirely on electricity. In Québec, most of this electricity is generated from clean hydroelectric sources, resulting in a direct decrease in CO₂ emissions.
2. Precise and smart control
Multizone systems often come with smart technologies that allow you to program temperatures by zone and adjust consumption based on actual needs. This eliminates energy waste.
3. Year-round efficiency
Unlike old air conditioners or electric baseboards, modern multizone heat pumps like those from Gree, Mitsubishi, or Fujitsu operate efficiently even at -25 °C, offering powerful heating in winter and quiet cooling in summer.
Available grants and financial assistance
Switching to a green heating system can be supported by attractive grants, including:
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Hydro-Québec’s LogisVert program: up to $5,000 for replacing a fossil fuel central system
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Federal “Greener Homes” grant: for eligible primary residences
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Municipal incentives (available in some boroughs like Plateau-Mont-Royal or Verdun)
Our team will guide you every step of the way to maximize your financial assistance.
What are the benefits of choosing AirGreen for your installation?
AirGreen stands out for its technical expertise, precision, and transparency. Here’s what our clients especially appreciate:
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Personalized diagnostics based on home layout and environmental goals
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Careful installation with attention to detail, preserving existing structures
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Administrative support in obtaining grants
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Post-installation follow-up and preventative HVAC maintenance options
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Fast service in Montréal, Laval, Longueuil, the North Shore, and the South Shore
Maintenance and longevity of multizone heat pumps
Regular HVAC maintenance helps extend the lifespan of your multizone heat pump (average 15 to 20 years) and ensures it performs at its best. At AirGreen, we offer:
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Complete annual cleaning of units (filters, evaporator, fan)
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Refrigerant check (including new types like R-32 or R-454b)
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Inspection of electrical connections and pressure testing
Practical tips to further reduce your carbon footprint
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Insulate your attic and walls: good insulation reduces thermal loss
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Install a smart thermostat: to manage heating based on occupancy
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Think about ventilation: installing a quality air exchanger reduces cooling needs
In conclusion
The multizone heat pump is not just an eco-friendly heating solution — it’s also a long-term investment in your comfort and in Québec’s energy transition. Thanks to our presence across the region — Montréal, Laval, Longueuil, North Shore, South Shore — and our commitment to quality, AirGreen has become a key player in the HVAC industry.
To get a free estimate, schedule your installation, or simply ask us questions, don’t hesitate to contact us. Together, let’s reduce your carbon footprint… and your energy bills.