The UltimateAir® News

ERV vs. HRV

Posted on Tue, Jan 08, 2019

Energy Recovery Ventilation or Heat Recovery Ventilation?

There is quite a bit of debate out there as to where ERVs should be used and where HRVs should be used. For those of you who do not know, HRVs, or heat recovery ventilators, like ERVs, are ventilation systems that transfer heat. However, unlike ERVs, heat recovery systems do not transfer moisture. This aspect significantly reduces HRVs capabilities in comparison to ERVs, making energy recovery units the more logical choice.

We see a lot of maps claiming that ERVs should be used in the humid South to reduce incoming moisture, while HRVs should be used in the colder North. However, these maps are inconsistent (for example, some suggest HRVs should be used in the arid Southwest). Moreover, they are wrong; ERVs can and should be used everywhere. As our graphic playfully shows above, we believe HRVs are suited for the Bermuda Triangle.

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Tags: energy efficient, indoor air quality, Air Ventilation System, Home, ERV, HRV, ERV or HRV

7th Annual North American Passive House Conference

Posted on Tue, Oct 23, 2012

The Passive House standard strictest building energy standard in the world—and that standard is not met without UltimateAir’s RecoupAerator. Buildings that meet the Passive House checkmarks use 80 percent less energy than buildings that don’t, all while creating an environment of finer air quality.

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Tags: Passive House Design, Passive House, indoor air quality, Air Filtration Passive House, ERV or HRV, UltimateAir.