Quote:
Originally Posted by PsYcNeT
Even if it's already venting outside? There is a separate vent already running through the wall.
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Oh yeah because it's sucking air out of the room so you need to bring air back into the room or your eyeballs will dry up. Kind of a crazy code but some of these industrial fans hit 1000 cfm. And houses are so sealed up these days I guess it could be a problem. Check the cfm rating on yours.