Does your home need an ERV or HRV?

| by Patrick Nielsen
Does your home need an ERV or HRV?

As homes are becoming more tightly built, proper ventilation is increasingly critical for optimal indoor air quality.

To meet requirements for fresh air flow in the home, building professionals are turning to Energy Recovery Ventilators (ERV) and Heat Recovery Ventilators (HRV).

These systems work continuously to extract moist, stale air from wet rooms (kitchens, bathrooms and utility rooms) and supply fresh, filtered air to habitable rooms (bedrooms, living rooms and dining rooms). The HRV/ERV recovers most of the comfortable room temperature and uses it to pre-cool the incoming air. Therefore, the incoming air to the home is already close to room temperature when it is distributed to living spaces. The air conditioning needs to be run far less for cooling.  By distributing the pre-cooled air evenly through rooms, hot spots in the home are reduced, and it’s a lot more comfortable for inhabitants.

What's the difference between an HRV and ERV? 

Heat Recovery Ventilators (HRV) reclaim energy from exhausted stale indoor air to temper incoming fresh air - heat is retained during cooler seasons, and removed during warmer seasons. These systems capture about 70 percent of the energy already expended to temper incoming air. BROAN HRV systems are designed to be ducted, whole-house solutions. They will meet ventilation needs based on square footage of the structure and maintain recommended air changes per hour.

Energy Recovery Ventilators (ERV) from BROAN are typically recommended for use in warmer climates where it is desired to remove humidity from incoming fresh air. While not a dehumidifier, ERV systems transfer moisture from incoming, humid air to the stale indoor air that is being vented to the outside. BROAN ERV systems are designed to be ducted, whole-house solutions. They will meet ventilation needs based on square footage of the structure, and maintain recommended air changes per hour.

HRV/ERVs help maintain a comfortable and healthy home by reducing the temperature and humidity of the fresh incoming air during the hot, humid summer time. It’s a healthier and more comfortable alternative to excessively running air conditioning to combat high humidity and temperature infiltrating a home through cracks and openings in the building.

Also, the HRV/ERV is designed to run quietly in the background, with a very low sound level so the homeowners won't even know it's there.


Topics: Indoor Air Quality, Ventilation


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