A silent threat looms over many commercial buildings in Montréal, Laval, Longueuil, South Shore and North Shore: the interaction between a poorly calibrated heating system and improperly controlled humidity levels. This duo, often overlooked, can quickly become a costly source of technical failures, comfort issues, and invisible deterioration that directly impacts the performance of your HVAC systems and the lifespan of your equipment. At AirGreen, we regularly intervene to resolve these issues by leveraging our unique expertise in the field of commercial heating.
Why is humidity the silent enemy of commercial heating?
Excessive or insufficient humidity acts as a catalyst for many problems within commercial heating systems:
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Oxidation of internal components in boilers, central heat pumps, or furnaces.
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Decreased energy efficiency of the equipment, resulting in unnecessarily high operating costs.
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Reduced thermal comfort, causing unpleasant temperature fluctuations for occupants.
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Premature deterioration of ventilation ducts, heat exchangers, thermostats, or sensors.
On top of that, it directly affects indoor air quality, which is particularly critical in offices, retail spaces, daycare centers, or healthcare facilities. Poor humidity control can foster mold growth, affect occupants' health, and jeopardize compliance with health standards.
Case study: A warehouse in Laval with localized overheating and chronic condensation
In a commercial warehouse located in Laval, AirGreen was contacted after the manager noticed signs of premature corrosion on the ventilation ducts. Following a thorough inspection, our specialists identified overheating in certain zones combined with excessively high humidity levels in others. Although the central heating system was relatively new, it had been installed without prior analysis of ambient humidity or thermal distribution. The result: rapid degradation of several critical components.
Our intervention: expertise, humidity measurements, and thermal recalibration
We proceeded in three phases:
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Complete HVAC audit including humidity, temperature, and airflow readings.
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Installation of smart humidity sensors integrated into the central HVAC control system.
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Reconfiguration of the heating system, with rebalancing of thermal zones and installation of a high-capacity industrial dehumidifier for high-risk areas.
Thanks to these adjustments, the company saw:
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A 17% reduction in monthly energy costs.
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A significant improvement in thermal comfort throughout the building.
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Complete elimination of duct condensation.
The crucial role of humidity control in winter
Winters in Quebec are particularly harsh on HVAC systems. Outdoor air is extremely dry, but once heated, it can over-dry indoor air, leading to:
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Cracking of materials (floors, moldings, furniture).
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Irritated respiratory tracts for occupants.
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Failures of sensitive electronic components.
Conversely, excessive humidity in some parts of the building can cause internal condensation, threatening electrical systems, control systems, or sensitive storage areas.
Custom humidification and dehumidification solutions
At AirGreen, we integrate humidity control solutions directly into heating systems. Depending on the building type, we may recommend:
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Steam or rotating disk humidifiers to maintain optimal levels in winter.
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High-efficiency commercial dehumidifiers to prevent excess moisture in production or storage areas.
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Ventilation systems with heat recovery (HRV) to balance humidity while preserving energy savings.
Brands, equipment, and compatible integrations
Our interventions include systems compatible with leading brands such as:
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Fujitsu and its multi-zone systems ideal for modular spaces.
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Bosch BOVA or BIVA, combining energy efficiency with fine-tuned humidity modulation.
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Goodman R-32, known for its compatibility with smart humidity control solutions.
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Lennox, Trane, and Carrier central heat pumps, with integrated climate monitoring systems.
Each installation is preceded by a comprehensive thermal and humidity diagnostic, allowing us to tailor our solution to your operational reality.
How to prevent the negative effects of humidity on your heating equipment?
Here are a few key recommendations to keep in mind:
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Have your HVAC systems inspected at least once a year, especially before winter.
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Invest in smart humidity sensors, connected to your thermostats or central control systems.
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Ensure proper thermal distribution throughout the building: avoid stagnant zones or temperature imbalances.
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Adopt balanced ventilation with air exchangers to limit humidity spikes.
Why trust AirGreen for your commercial heating projects?
At AirGreen, our specialty goes beyond simply installing commercial heating systems. We support our clients with a complete process of analysis, consulting, calibration, and optimization. Our services cover the entire Greater Montréal Area, including Laval, Longueuil, North Shore, and South Shore.
Each project benefits from:
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An on-site technical evaluation.
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A personalized installation or correction plan.
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A dedicated technical team, experienced in complex commercial environments.
Our clients include warehouses, offices, restaurants, daycares, senior residences, and medical centers — all benefiting from a tailored approach that ensures durability, performance, and energy efficiency of their heating systems.