We are getting ready to do a custom home with 4 Geo systems. Tight Icynene house. We are putting in an ERV, possibly 2. The builder asked me about soemthing I wasn't very sure about. Is there an ERV system that batroom exhausts get fed back into. I have googled and didn't really see anything. I would just be afraid of the mixing of bathroom gasses with make up air.
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