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BS* + Beer
The BS* + Beer Show: HRVs and ERVs

A rundown of the basics and a short walk into the weeds
Musings of an Energy Nerd
Zehnder Develops a Ductless ERV

The Zehnder ComfoAir 70 competes with similar appliances sold by Panasonic, Lunos, and Vents-US

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The BS* + Beer Show: HRVs and ERVs