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Air Sealing
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12-28-13, 10:00 AM
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wuck
Helper EcoRenovator
Join Date: Nov 2013
Location: Sonoma County NorCal
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It seems the bath fans I've installed include a backdraft damper (cheap broan fans). The last one I used had one, and I also included a dryer flap outlet as it was vented out the wall (1st floor bath).
Pat
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