bathroom exhaust fan
I need to install a bathroom fan. I'd like to use a fantech in-line fan system because I've got a long run and it's quiet. The house is brick, 210 years old so the vent has to go through the roof, which is metal.
Bath is on 2nd floor, there is a finished 3rd floor so the exhuast pipe will run between beams and up through a corner and out.
Q. I have a 4" stack vent already in place and very accessible. Is there any reason I can't add a T and vent the exhaust out thru the stack? That would save a lot of time and money. All other plumbing is below the proposed intersection.