In many single-family homes in Fabreville, indoor air quality depends heavily on mechanical ventilation, especially in winter when everything is closed up. We recently installed (and optimized) a va¦nEE Air Exchanger in a technical attic space, with a duct configuration typical of Greater Montreal residences.
An air exchanger: the discreet “lung” of the house
An air exchanger (HRV/ERV) is used to:
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to remove stale air (humidity, odors, CO₂) from rooms such as the bathroom, kitchen and laundry room;
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introduce fresh, filtered air from outside;
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recover some of the heat (and sometimes humidity depending on the type) to maintain good comfort, without wasting energy.
This is exactly the kind of equipment that improves the home… without you even thinking about it, until the day the air becomes heavy, condensation appears on the windows, or humidity sets in.
What the photo reveals about the installation
On this construction site, the va¦nEE Air Exchanger unit is installed at a height , suspended in a technical space (exposed wooden structure). This approach is common: it frees up floor space, reduces transmitted vibrations, and allows for efficient ductwork routing.
Here are the most prominent visible elements:
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Insulated flexible ducts : essential in an attic to limit condensation and heat loss.
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Metal fittings and rigid elbows : used at critical points for better strength, more reliable sealing and more stable airflow.
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Chain suspension : a good practice to reduce noise and prevent the unit from "working" with the structure.
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Power supply nearby : dedicated outlet accessible, convenient for maintenance.
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Conduit organization : neat grouping, with careful transitions and fixings (a detail that makes a real difference to overall performance).
Our AirGreen approach: performance, silence, reliability
Installing an air exchanger isn't just about "hanging a box and connecting pipes." What matters is the result in the house.
During this type of intervention, we pay particular attention to:
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the sealing of the joints (to prevent air leaks and loss of flow);
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the logic of the routes (reduce unnecessary lengths and tight bends);
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noise reduction (suspension, insulated ducts, adequate fixings);
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condensation prevention (insulation, slopes and humidity management);
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The balance : a comfortable house is a house where the extraction and supply of air are well regulated.
Why this is particularly important in Laval (and throughout Quebec)
In Quebec's climate, houses are very airtight and heated for long periods. Without controlled ventilation, we often see:
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excessive humidity (mold, odors);
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discomfort (heavy air, headaches);
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gradual degradation of materials (wood, gypsum, insulation);
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Poorly managed air pressure (drafts, suction in places).
A well-installed and properly calibrated va¦nEE Air Exchanger becomes a true “comfort system” in its own right: more fresh air, less humidity, and a healthier home.
Maintenance: simple, but crucial
To maintain the performance of an air exchanger:
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clean or replace the filters as needed;
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check the outside air intakes (obstructions, snow, dust);
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have the unit inspected periodically, especially before the cold season.
At AirGreen, we like the installation to remain accessible and logical : it facilitates maintenance and avoids surprises in 3–5 years.
In summary
This installation in Fabreville (Laval) perfectly illustrates what we look for: a clean , insulated , and well-suspended installation with properly managed ductwork—all contributing to healthier indoor air. If you suspect a problem with ventilation, humidity, or air quality, we can assess your setup and offer a suitable solution (installation, replacement, optimization, or repair).