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3398 Washington Road
Atlanta, GA 30344
USA

773.398.5288

Advanced residential construction and home improvement consulting and owner's advocacy in Atlanta, using the latest building performance diagnostic and modeling techniques and tools. Airtightness, insulation, HVAC, ventilation, moisture, and air quality and EMF consulting for homeowners and building professionals alike.

Mythbusting ERV vs. HRV: Which Ventilation is Safer for Moisture and Humidity?

Videos/Podcasts/Articles

Home performance articles and stories from the field with internationally respected building forensics guru Corbett Lunsford at the Building Performance Workshop. Hear new episodes of the Building Performance Podcast, see new videos from the Home Performance YouTube channel, and learn all about how diagnostic testing (more than an 'Energy Audit') can make home improvement and new home construction a proven process!

Mythbusting ERV vs. HRV: Which Ventilation is Safer for Moisture and Humidity?

Corbett Lunsford

The myth that ERVs are an unsafe or unproven way to ventilate compared to HRVs is a bizarre twist- here's how to think through the question and come to the right conclusion in your own mind. Energy (or Enthalpy) Recovery Ventilator (ERV) cores equalize temperature and humidity, while Heat Recovery Ventilator (HRV) cores recover temperature alone. Therefore, ERVs are better at shielding homes from humidity than HRVs in even extreme situations, as you'll see, but on the other hand they are NOT a replacement for dehumidifiers. Think of an ERV as a shield, or a buffer, or a battery, and put together the system of your next home's ventilation with greater clarity and elegance. Using my friend and dad-hero Bryan Orr (https://HVACRSchool.com)and his 10 kids as a hypothetical-cat-in-a-box, which I'm sure he'll enjoy.

Thanks to Renewaire for making great devices like the one shown: https://Renewaire.com

Learn more about keeping the indoors healthy: https://HealthyIndoors.com

See the first-ever TV show about the Science of Homes: https://HomeDiagnosis.tv

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