Optimizing indoor comfort year-round in a city like Montreal, where temperatures fluctuate dramatically between harsh winters and humid summers, requires a HVAC solution that is efficient, adaptable, and well-planned. That’s exactly where the multizone heat pump stands out as a top choice for homeowners seeking to combine comfort, energy efficiency, and flexibility. At AirGreen, we’ve helped hundreds of homes and commercial buildings make the switch to this advanced technology, particularly in Montreal, Laval, Longueuil, as well as on the North Shore and South Shore.
Why choose a multizone heat pump?
Unlike a single-zone wall-mounted heat pump, the multizone version powers multiple indoor units from a single outdoor compressor. This means you can heat or cool each room independently while keeping energy consumption in check.
Key benefits of a multizone heat pump
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Customized comfort: Every occupant can set the temperature in their own zone to suit their preferences.
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Lower energy costs: Thanks to inverter technology and demand-based modulation, you use only what you need.
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Aesthetics and discretion: One outdoor unit avoids visual clutter and reduces noise.
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Flexible installation: Ideal for multi-story homes, duplexes, or commercial buildings with complex layouts.
Case study: Multizone heat pump installation in Outremont, Montreal
Recently, our team completed a large-scale HVAC installation in a triplex located in Outremont, a prestigious residential neighborhood in Montreal. The client wanted a discreet, efficient solution capable of providing optimal comfort year-round without relying on electric baseboards in every room.
Chosen configuration:
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Brand: Fujitsu
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Model: AOU36RLXFZH
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Capacity: 36,000 BTU
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Indoor units: 4 wall-mounted heads ASU12RLF in the living room, kitchen, bedrooms, and office
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Location: Outremont, Montreal
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Grant eligibility: Hydro-Québec LogisVert program – eligible amount of $2,500
Installation process
Step 1 – Technical assessment
We began with a full inspection of the building to determine piping lengths, feasibility of outdoor unit placement in a narrow laneway, and electrical compatibility.
Step 2 – Custom planning
Each indoor head was positioned based on the room layout, sunlight exposure, and desired airflow. The compressor was installed on vibration-absorbing blocks to reduce noise and extend lifespan.
Step 3 – Work and commissioning
The work was completed over two days, including drilling, refrigerant line installation, thermal insulation, electrical connections, and performance testing. During commissioning, we verified that the system reached the expected thermal output and that the dehumidification mode worked properly.
What to consider before choosing a multizone heat pump
1. Number of zones
The more zones you want to control individually, the more advantageous the multizone heat pump becomes.
2. BTU capacity
It’s essential to match the capacity to the square footage and insulation level of each room. Undersizing leads to overuse; oversizing reduces efficiency.
3. Trusted brands
At AirGreen, we only install reputable brands such as Fujitsu, Gree, Daikin, Mitsubishi Electric, and Bosch—all backed by strong warranties and local parts availability.
4. Grant eligibility
Our experts guide you through the process of obtaining provincial and federal grants, like the LogisVert or Chauffez Vert programs.
Common mistakes to avoid
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Installing a heat pump without a thermal assessment: This often results in poor performance.
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Neglecting annual maintenance: Dust and clogs can reduce efficiency by 15 to 20%.
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Hiring a non-certified installer: Poor connections or refrigerant leaks can lead to major costs.
The importance of regular maintenance
Our HVAC maintenance contracts include filter cleaning, pressure checks, and electrical connection inspections. This routine care helps preserve your system’s lifespan and optimize its performance season after season.
Customer testimonial – Project in Longueuil
"We hired AirGreen to install a multizone heat pump in our Longueuil bungalow. The team was impressively efficient: punctual, detail-oriented, and very attentive. The comfort we now feel in each room is incomparable." — The Bouchard Family
Why choose AirGreen for your multizone installation?
At AirGreen, we combine advanced technical expertise, deep knowledge of Quebec buildings, and a personalized approach for every client. Our teams operate throughout all boroughs of Montreal, in Laval, Longueuil, on the North Shore (Terrebonne, Blainville, Mirabel), and the South Shore (Brossard, Saint-Lambert, Sainte-Julie). Every project is handled with precision, transparency, and a commitment to your satisfaction.
In summary: The multizone heat pump, a smart solution
For anyone looking for a HVAC system that’s flexible, high-performing, and cost-effective, the multizone heat pump is a solution worth considering. Thanks to our on-the-ground experience and know-how, we guide you at every step, from selecting the right equipment to worry-free installation, including full support for grant applications.
Have a project in Montreal, Laval, Longueuil, the North Shore or South Shore? Contact us today for a free, personalized estimate.