When a house is well insulated (which is excellent news for heating), the indoor air also tends to "rotate" faster: persistent humidity, lingering odors, a feeling of heavy air, condensation on the windows… It is exactly in this context that we carried out, in Sainte-Dorothée (Laval) , the installation of an air exchanger (HRV) Air Exchanger va¦ИnEE ← , a system designed to renew the air continuously while recovering some of the heat.
In this residential project, the objective was clear: to improve air quality , stabilize humidity and reduce the risk of condensation during the Quebec winter, without penalizing comfort or energy bills.
Why install an air exchanger in a house in Laval?
In Greater Montreal, and particularly in areas like Laval where many properties have been renovated or modernized, we often see the same scenario: the building envelope is more airtight than before, but natural ventilation is no longer sufficient.
An air exchanger solves this problem by ensuring a constant cycle:
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Extraction of stale air (kitchen, bathrooms, wet areas)
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Supply of filtered fresh air
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Heat recovery (depending on the type of core, the outgoing air partially preheats the incoming air)
The result: healthier air, better controlled humidity, and a more comfortable home on a daily basis.
Type of machine installed
This is clearly an air exchanger / heat recovery ventilator (HRV) , installed in a mechanical space (such as an attic/technical area) and connected to ducts.
Brand (supplied manually, used as is): Air Exchanger va¦nEE←
Model (consistent with what is visible on the unit): Virtuo (Virtuo series / Air Technology)
Visible installation details and key technical points
In the photo, several elements speak for themselves and confirm a typical residential installation, but one that must be done carefully to avoid performance losses:
1) Suspended unit and service access
The Air Exchanger va¦ИnEE← is installed stably and safely, with the necessary space for:
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access the panels,
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check the filters,
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perform periodic maintenance,
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intervene on the connections as needed.
Good access is essential: a system may be excellent on paper, but if it becomes difficult to maintain, its performance drops more rapidly (and so does the air quality).
2) Connection to insulated conduits
You can clearly see insulated flexible conduits (grey sheath) attached to clamps, with carefully sealed joints. This point is crucial because:
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limit heat loss,
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reduce the risk of condensation on the ducts,
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maintain a constant and balanced airflow.
In an environment like an attic, duct insulation is not an option: it is a performance requirement.
3) Control panel/command nearby
The presence of a control box (with display/controls) indicates an adjustable and supervised system: speeds, modes, timers, sometimes even humidity-related functions depending on the configuration.
At AirGreen, we don't just "plug in the machine": we make sure that the customer can understand and use their system, and above all that the settings really correspond to the needs of the house.
4) Installation designed for comfort (noise, vibrations, stability)
An efficient air exchanger must also be discreet . The best practices we systematically apply are:
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solid and stable fixing
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fittings and conduits properly tensioned (without crushing),
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optimized duct trajectories (less loss, less noise),
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vibration check.
Our AirGreen approach: performance, balance, measurable results
An air exchanger is not just a box with ducts: it is a ventilation system that must be balanced .
In concrete terms, in a project like the one in Sainte-Dorothée, our method includes:
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Needs analysis (humidity, odors, condensation, occupancy, sensitive areas)
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Choosing the unit's positioning for good access and logical conduit layout
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Connection and sealing of conduits (airtightness = performance)
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Commissioning and settings (flow rates, modes, normal vs. intensive operation)
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Simple usage tips : when to increase ventilation, how to manage humidity in winter, maintenance frequency
The goal: for the ventilation to be efficient and stable , not just “functional”.
What this type of air exchanger changes on a daily basis
Fresher air, fewer odors
Constant renewal reduces the “stuffed air” effect, which is particularly noticeable in well-insulated homes.
Humidity better controlled
In winter, too much humidity can cause:
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condensation on the windows
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sensation of heavy air,
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Risk of mold growth in certain areas.
An air exchanger helps to bring the humidity back to a more comfortable level, especially when it is properly adjusted.
Improved comfort without waste
A good HRV/HRV system limits heat loss associated with ventilation. You breathe better without "opening the windows" and losing all the heated energy.
Maintenance tips (simple, but essential)
To maintain high yields, it is generally recommended to:
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Checking/cleaning the filters (depending on usage, often every few months)
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Seasonal inspection of visible ducts and fittings
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Periodic cleaning according to the manufacturer's manual (and depending on the environment: dust, construction work, animals, etc.)
A well-maintained air exchanger is:
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improved air quality,
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more stable flow rates,
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increased longevity.
Conclusion: healthy ventilation, adapted to the Quebec climate
In Sainte-Dorothée (Laval) , this installation of an Air Exchanger va¦nEE← (Virtuo model) perfectly illustrates what we look for in a modern home: to breathe better , reduce humidity , and maintain comfort even during the coldest weather.
At AirGreen, we love these projects because they bring an immediate, concrete, and lasting benefit: a healthier, more pleasant home, better protected against the effects of insufficient ventilation.