Improving the energy performance of a large commercial space is never simple. However, at AirGreen, we’ve proven that with targeted expertise in commercial heating, the right technology, and flawless execution, it’s possible to achieve substantial savings without compromising indoor comfort. Here’s a detailed case study of one of our most noteworthy projects: the complete modernization of the heating system of a shopping centre located on Montréal’s South Shore, which enabled the client to reduce energy consumption by 25%.
Objective: modernize an aging and energy-hungry HVAC system
When the management team of this shopping centre reached out to us, they were facing a major issue: their central heating system, over 20 years old, was no longer operating efficiently. Operating costs were skyrocketing every winter, tenant complaints were increasing, and the equipment was regularly breaking down.
After a full evaluation, we identified several key issues:
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Low energy efficiency of the existing units.
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Uneven heat distribution throughout the different wings of the building.
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High maintenance costs.
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No smart zoning system.
Our mission was crystal clear: replace the outdated HVAC system with a modern, high-performance, and durable solution, all while minimizing disruption to the retailers.
Our solution: a tailored approach with high-efficiency equipment
Technological choice: high-efficiency central heat pumps
To meet the building’s needs, we recommended the installation of a high-efficiency central heat pump system, combined with Goodman R-32 air handlers and Bosch BOVA IDS Premium (R-454b) variable-speed compressors. This powerful combo ensures ultra-precise temperature regulation and reduced energy consumption, even in the harshest winter conditions.
Project technical details:
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Area served: 6,800 m² across two floors.
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Equipment installed: 4 Goodman central units of 5 tons (60,000 BTU each), paired with 4 Bosch variable-speed heat pumps.
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Integrated zoning: 12 independent zones with smart thermostats and occupancy sensors.
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Centralized control via a digital interface accessible to the management team.
Challenges encountered on the job site
Every commercial HVAC installation comes with its own set of challenges. Here are the main issues we tackled:
1. Ongoing commercial activity
The shopping centre needed to remain open throughout the duration of the project. We therefore planned a night-time, section-by-section installation, ensuring there was no disruption to the retailers’ operations.
2. Tight technical spaces
The old units were located in very narrow mechanical rooms. Our team had to dismantle the existing equipment in phases, while installing the larger new systems without expanding the available mechanical space.
3. Complex heat distribution
With large windows, multiple entrances, and variable foot traffic, managing heat across this type of building is challenging. Using smart zoning and CO2 and occupancy sensors, we adapted heat distribution based on real-time needs.
Results achieved after installation
After full commissioning and a three-month testing period, the results exceeded the initial expectations:
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25% reduction in energy consumption in the first winter alone.
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Even thermal comfort, confirmed by surveys completed by tenants.
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80% decrease in service calls compared to the previous year.
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Eligibility for a $14,000 grant through Hydro-Québec’s commercial LogisVert program.
Why this project highlights AirGreen’s commercial heating expertise
This South Shore project perfectly illustrates our commitment to operational excellence and energy efficiency. At AirGreen, we don’t offer one-size-fits-all solutions. We develop custom HVAC strategies, tailored to the unique needs of each building.
Our core strengths:
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Multidisciplinary expertise (engineering, electrical, automation, refrigeration).
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In-depth knowledge of Québec’s commercial building standards.
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Complete support: from the initial energy assessment to post-installation maintenance.
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Mastery of grant programs to maximize return on investment.
Practical advice for commercial building managers
If you manage a shopping centre, an office building, or a public facility, here are some key recommendations to keep in mind:
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Have your energy consumption evaluated every 5 years.
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Prioritize variable-speed heat pumps, which are more efficient in Québec’s climate.
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Consider smart zoning to adapt heating to your space’s real-time needs.
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Consult an expert to learn about available grants.
Local expertise serving the South Shore, Montréal, and beyond
AirGreen is a trusted leader in the HVAC field across Montréal, Laval, Longueuil, the North Shore, and the South Shore. Thanks to our personalized approach, we help dozens of businesses each year lower their costs while improving indoor comfort.
Whether you manage a shopping centre, own a mixed-use building, or oversee a retail chain, we’re here to design, install, and maintain custom commercial heating solutions.
Contact us today to discuss your project or to schedule a no-obligation energy assessment.