Venting Bathroom Fan in Stack Pipe
AndyCharron1
| Posted in Construction Techniques on
I’m in the process of installing a bathroom fan and was wondering if there is any reason why I can’t connect the exhaust directly into a 3″ vent stack that’s located about 12 inches away from where the fan is going? The connection would be made about 4 feet below where the vent penetrates the roof. This seems to be such an easy, and obvious, solution to my problem that I’m sure there must be a reason why not to do this. I just can’t think of one.
Replies
sewer gas, big no no also code violation 2+3=7
Edited 11/26/2005 4:40 pm by brownbagg
Thanks for the quick reply. I didn't think of sewer gas backing up into the fan. I forgot that unlike plumbing fixtures, the fan wouldn't have a trap, would it! Duh..... I figured it was so simple a solution that it couldn't possibly be a good thing to do. Thanks again.
Also, rain might find it way in.
I do have pictures of 2 I've seen in inspections in the last 1+1/2 years!! I'll have to get my pics together and learn how to post them.