Efficiently Heating Large Spaces: AirGreen Expertise Serving Warehouses in Montréal and Surrounding Areas
When it comes to commercial heating, warehouses pose a unique challenge. With their high ceilings, vast floor areas, and sometimes irregular usage, they require custom-designed HVAC heating solutions. At AirGreen, we’ve developed deep expertise in this field. From Montréal to Laval, through Longueuil, the South Shore, and the North Shore, we work with warehouse owners to transform these often difficult-to-heat environments into comfortable, energy-efficient, and functionally adapted spaces.
Specific Challenges in Heating a Warehouse
Ceiling Height Issues
A typical warehouse has ceilings ranging from 20 to 40 feet high, which leads to air stratification: warm air rises and accumulates near the ceiling while cold air stays at ground level where employees are working. Without the right system, achieving thermal comfort is difficult, and energy consumption skyrockets unnecessarily.
Often Poor Insulation
Many warehouses, especially older ones, are poorly insulated, with metal walls, thin roofs, or drafty loading dock doors. This worsens heat loss, especially during winter in Montréal or on the North Shore, where temperatures can drop well below -20 °C.
Irregular or Partial Occupancy
Some warehouses don’t require constant heating: some areas may remain unused for days, while others may need to maintain controlled temperatures for storage. This calls for flexible heating solutions, even thermal zoning.
AirGreen Solutions: Efficiency, Comfort, and Savings
A Customized Approach to Every Building
At AirGreen, we start every warehouse heating project with a detailed site analysis: square footage, ceiling height, space usage, existing insulation, and existing HVAC systems. This assessment allows us to recommend precise, high-performing, and scalable solutions perfectly suited to the client’s needs.
Strategic Use of Unit Heaters and Air Curtains
For large spaces, electric or natural gas unit heaters are often the most effective option. They distribute warm air quickly and efficiently. We position them high up, in strategic spots, to ensure uniform heat distribution. To complement them, we recommend heated air curtains at entrances and loading docks to prevent heat loss.
Heat Recovery Systems and High-Efficiency HVAC Units
For buildings with continuous occupancy, we favor installing centralized commercial HVAC systems with high energy efficiency, such as air-source or water-source commercial heat pumps. For instance, in a warehouse in Longueuil, we installed a 12-ton Trane heat pump, paired with a heat recovery system on exhaust air. The result: consistent thermal comfort with a 35% reduction in annual energy bills.
Air Destratifiers: An Essential Addition
To combat heat stratification, we systematically integrate HVLS (High Volume Low Speed) destratification fans. These large fans push warm air from the ceiling down to the floor, reducing heating energy consumption by up to 30%.
Smart Zoning and Sector-Specific Controls
In a Laval warehouse used for food storage, we implemented a zoning system with smart thermostats, allowing only actively used zones to be heated daily, while maintaining a minimum temperature in storage areas. This prevented unnecessary overheating while complying with storage requirements.
Case Study: Installation in a Saint-Hubert (South Shore) Warehouse
An industrial client contacted us to heat their 10,000 sq. ft. warehouse in Saint-Hubert. The north-south facing building was exposed to heavy drafts at loading dock areas. After analysis, our team proposed a combination of:
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Three 20 kW Lennox electric unit heaters
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Four Reznor heated air curtains at main entrances
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Two 24-foot HVLS fans for destratification
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A centralized control system with programmable schedules
The installation was completed in six business days, without interrupting warehouse operations. The client noticed an immediate improvement in comfort and an estimated 28% drop in annual electricity bills.
Concrete Benefits for Our Clients
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Optimal thermal comfort for employees, even in winter
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Significant energy savings, thanks to optimized design
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Durable, robust systems, suited to industrial environments
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Precise zone-by-zone control, for smart, cost-effective heating
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Compliance with safety standards and industrial requirements
Available Grants for Warehouse Heating
We help our clients access grant programs offered by Hydro-Québec, Transition Énergétique Québec, and other provincial initiatives. For example, high-efficiency installations can qualify for financial aid covering up to 50% of the project cost, depending on the equipment and projected savings.
Why Trust AirGreen?
With over 15 years of experience in commercial HVAC solutions, we’re recognized across Greater Montréal for:
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Our tailored approach
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The quality of our installations
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Our partnerships with top-tier brands (Trane, Lennox, York, Reznor…)
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Our certified teams with ongoing training
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Our commitment to energy efficiency and customer satisfaction
Practical Advice for Efficient Warehouse Heating
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Have your wall and roof insulation inspected before any installation
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Choose scalable systems that can adapt to future needs
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Integrate air destratifiers at the design stage
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Request a full energy analysis to maximize grant eligibility
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Work with an experienced HVAC specialist like AirGreen
Conclusion: Thoughtfully Designed Heating, Powered by AirGreen
At AirGreen, we understand that every warehouse is unique. That’s why we offer tailored heating solutions, effective, economical, and durable—adapted to your layout, your budget, and your needs. Whether you're in Montréal, Laval, Longueuil, on the South Shore or the North Shore, count on our expertise for a seamless and high-performance warehouse heating project.