Avant/Après : ce triplex de la Rive-Nord a doublé son efficacité énergétique avec une thermopompe multizone
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Before/After: This Triplex in the North Shore Doubled Its Energy Efficiency with a Multi-Zone Heat Pump

Improving the energy performance of a triplex while ensuring optimal comfort for its occupants is a challenge we tackle daily at AirGreen. In this project on Montréal’s North Shore, our team was tasked with transforming a three-unit residential building into a high-performance, energy-efficient, and perfectly climate-controlled space through the installation of a multi-zone heat pump. Here's how we doubled the energy efficiency of this property by combining expertise, cutting-edge technology, and outstanding customer service.

A Major Energy Transformation in the Heart of the North Shore

Located in Blainville, this triplex owner was looking for an HVAC solution that would provide both summer cooling and winter heating while significantly reducing energy consumption. The goal was clear: replace an outdated, inefficient, and costly electric system with a modern, energy-efficient multi-zone heat pump, all while allowing independent temperature control for each unit.

The Strategic Choice of a Multi-Zone Heat Pump: Comfort and Efficiency

After a thorough technical evaluation, our team recommended installing a Gree Free Match multi-zone heat pump with 36,000 BTU, paired with three indoor wall-mounted units of 12,000 BTU each—one for each apartment. This model was selected for several key reasons:

  • High-efficiency inverter technology

  • Quiet operation, ideal for rental units

  • Compact outdoor unit, perfect for space-constrained triplexes

  • Eligible for Hydro-Québec’s LogisVert subsidies

This multi-zone heat pump allows each tenant to set their preferred temperature while benefiting from reduced energy use thanks to the variable-speed compressor.

Installation Process: Precision and Customized Execution

Step 1: Technical Analysis and Personalized Recommendations

Before the installation, our certified HVAC technicians inspected each unit to determine the ideal capacity, the best placement for the wall-mounted units, and the optimal location for the outdoor unit. In a multi-unit building, it’s crucial to meet electrical codes, aesthetic requirements, and space limitations.

Step 2: Coordinating with the Occupants

We coordinated closely with the three families living on-site to minimize disruption. Each unit was installed in half a day, with comprehensive testing at the end of the job to ensure proper operation.

Step 3: Technical Installation

The outdoor unit was mounted on an elevated frost-resistant platform at the back of the building. Insulated lines were carefully routed, with wiring concealed as much as possible to maintain a clean exterior look. The three indoor units were mounted high up in the living rooms of each apartment for optimal air circulation.

Results Observed After Installation

Just days after the system was up and running, the results were striking:

  • Over 40% reduction in electricity consumption, based on the owner’s reports

  • Immediate improvement in thermal comfort in each apartment

  • Noticeable decrease in noise compared to the old electric baseboards

  • Full tenant satisfaction, especially with individualized temperature control

Grant Eligibility: A Concrete Financial Advantage

Thanks to our guidance, the property owner was able to take advantage of Hydro-Québec’s LogisVert grant, covering up to $2,200 for this installation. We handled all the administrative paperwork, ensuring a quick and smooth reimbursement.

Why Choose AirGreen for a Multi-Zone Installation on the North Shore?

At AirGreen, we don’t just sell HVAC equipment. We design customized solutions, perfectly tailored to our clients’ residential and commercial needs. Our certified technicians are experts in multi-zone heat pump installations, even in complex environments like rental buildings. From Montréal to Laval, including Longueuil, the North Shore, and the South Shore, we’re known for our precision, speed, and excellent after-sales service.

Maintenance Tips for Long-Term Performance

We recommended that the owner subscribe to our annual HVAC maintenance program, which includes:

  • Filter cleaning

  • Compressor inspection

  • Refrigerant pressure check

  • Drainage and condensate system verification

Regular maintenance not only extends the system’s lifespan but ensures it operates at peak efficiency, year-round.

Key Takeaways for Your Multi-Zone Project

If you own a triplex or a multi-unit building, installing a multi-zone heat pump is a smart investment for both your budget and your tenants’ comfort. Here are some points to consider:

  • Choose a reputable brand (like Gree, Fujitsu, or Mitsubishi)

  • Ensure your installer is certified and experienced

  • Verify grant eligibility to optimize your ROI

  • Request an on-site evaluation to determine the exact capacity needed

Testimonial from the Owner

"I didn’t think such a change was possible without major renovations. The AirGreen teams handled everything—from the assessment to the installation—and now my tenants are thrilled. I 100% recommend them." – Triplex Owner in Blainville

Conclusion: A New Era of Comfort and Savings on the North Shore

With this multi-zone heat pump installation, this North Shore triplex has taken a major leap in terms of energy performance and comfort. This type of project perfectly illustrates our commitment to providing HVAC solutions that are efficient, economical, and tailored to each unique situation.

If you’re looking to upgrade your rental property or home, contact the AirGreen team today for a free consultation. We’re your trusted HVAC partner across Montréal, Laval, Longueuil, the North Shore, and the South Shore.