S-F & MN Renovator- great input. pressurizing the house does make more sense now.
Ii will probably come up with a better fan location then my attic if i will be pressurizing the house. I don't think it would be a good idea to be sucking all the nasty stuff that might in the attic into the house. I do have a little dual fan setup that stays in our master bedroom window to help cool it down at night so we can sleep better. Ill turn that on hi and go to the basement hot water heater vent and see if that makes any pressure. Its worth a try seeing as its already in the window. ill probably have to add another fan somewhere else.
the more i think about this, the more scared im getting of the results i might find.
