Originally posted by Daniel
<br />Be careful about venting your dust collector outdoors. it can cause fumes from your heater, waterheater or any other gas devise to be drawn into the house. I mention that here because of the need for one in a house. Not completely sure your shop is inside the house but better safe than sorry.
as far as the venting to the attic. if the filter is doing it's job there would not be an issue. but the number of so called filters out there would make me worry. some places have laws forbidding the venting of dust collectors to the outside air. Gratefully Reno is not one of them, be shur to check your area though.
I just ried to go to bills page but my puter says it cannot be found. maybe he finally made good on the comments about shutting it down. I used to have a bench of his info stored on a disk though. I'll see if I can find it