Optimizing indoor air quality while ensuring maximum energy efficiency has become an essential priority in today’s homes. Choosing the right heat recovery ventilator (HRV – Heat Recovery Ventilation) is a critical step in ensuring comfort, health, and energy performance in your home. At AirGreen, we know that every house is unique. That’s why we’re offering you this comprehensive guide, tailored to different home sizes, to help you make an informed, high-performing, and long-lasting choice.
Why installing an HRV is essential for your home
The improved airtightness of new and renovated buildings makes homes more energy efficient but also more sealed. Without a mechanical ventilation system, pollutants, moisture, and allergens accumulate, threatening the health of occupants. The HRV renews indoor air while recovering the heat from the stale air, which lowers energy bills while maintaining a healthy indoor climate.
How to choose an HRV suited to the size of your home
For small spaces: condos, apartments, or townhouses (under 1200 sq. ft.)
In smaller homes, space for ductwork is often limited, and air renewal needs are lower. We recommend compact models such as:
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Vanee 40E or Broan ERV100HC
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Recommended airflow: around 40 to 80 CFM
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Discreet installation in a closet or laundry room
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Low noise level, ideal for urban living
We recently installed a Vanee 40E in a condo in Plateau Mont-Royal, Montréal. The main challenge was the lack of duct space in an already packed ceiling. Our technicians opted for a vertical configuration with a wall-mounted suspension system, minimizing floor space while optimizing performance.
For medium-sized homes (1200 to 2500 sq. ft.)
These homes require higher airflow and a more even distribution. The best choices include:
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Fantech VHR150 or Venmar AVS K7 ERV
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Recommended airflow: 100 to 150 CFM
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Ideal for installation in the basement or a mechanical room
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High-efficiency filters for optimal air quality
In Laval, in a 1800 sq. ft. single-family home, we replaced an old system without energy recovery with a Fantech VHR150. Thanks to its ECM motor, electricity usage dropped by 30%, and indoor air is now efficiently filtered. This project benefited from a provincial energy efficiency grant, which we handled on behalf of the client.
For large homes or multi-storey properties (over 2500 sq. ft.)
Large properties require more powerful ventilation and balanced distribution across multiple floors. In this case, we recommend:
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Venmar E15 ECM HRV, Lifebreath RNC205 or Zehnder ComfoAir Q350
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Recommended airflow: 150 to 250 CFM
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Option to create zoning by floor or specific rooms (e.g., children’s bedrooms, basement)
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Humidity or CO2 sensors for intelligent control
Recently, on the North Shore in Blainville, we installed a Zehnder ComfoAir Q350 in a 3200 sq. ft. property. The installation included a multi-zone distribution system with smart sensors, allowing adaptive ventilation based on room occupancy. This high-end project demonstrates the full power of next-generation HRVs in terms of comfort and sustainability.
Technical criteria for choosing the right HRV
Capacity (CFM)
The required airflow depends on the living area and the number of occupants. At AirGreen, we calculate airflow based on Quebec Building Code standards, following CSA-F326 guidelines.
Type of exchange (air-to-air, heat or energy)
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HRV (Heat Recovery Ventilator): ideal for Quebec winters.
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ERV (Energy Recovery Ventilator): recommended for homes with central air conditioning, as it also manages humidity.
Energy efficiency
Top HRVs achieve up to 75% heat recovery efficiency. Some HVI-certified models also offer ECM motors, reducing electricity use.
Sound level
Especially important in smaller homes. We always recommend models tested in decibels, installed on vibration dampers to minimize noise.
Maintenance and accessibility
The models we install are selected for their ease of maintenance (accessible filters, smart reminders), ensuring long-term performance.
Grants and incentives for HRVs in Quebec
Programs like Rénoclimat or incentives from the City of Montréal can cover part of the investment in a heat recovery ventilator, particularly when integrated into an energy-efficient renovation project. At AirGreen, we assist our clients in submitting applications to obtain these financial aids.
What you gain with AirGreen
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Free in-home evaluation anywhere in Montréal, Laval, Longueuil, North Shore, and South Shore
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Tailored selection based on your home’s layout
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RBQ-certified team trained to the standards of advanced residential ventilation
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Post-installation follow-up and annual maintenance available
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High-quality products from trusted brands: Venmar, Vanee, Fantech, Broan, Zehnder, Lifebreath
Common mistakes to avoid when choosing an HRV
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Choosing a unit that’s too powerful for a small space (noise, overconsumption)
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Installing an HRV without professional balancing (poor performance)
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Skipping regular maintenance (reduced efficiency, excess humidity)
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Forgetting to check compatibility with other HVAC systems (heat pump, furnace)
AirGreen’s expertise serving your comfort
At AirGreen, every project is unique. Our installers take the time to analyze your home’s layout, your specific needs, and your lifestyle habits. With this personalized approach, we ensure the optimal performance of your HRV system, delivering healthier air, increased comfort, and better energy efficiency.