In our new house the soffits are a long way from our bathroom so the easier route was to install a wall vent outlet similar to a dryer vent outlet directly below the attic vent on the side of the house.
Run bathroom vent along wall to outside.
When remodeling bathrooms we always plan to install all plumbing lines inside interior walls and avoid running plumbing in exterior walls due to the reality of the pipes freezing.
The location of the bathroom will determine how extensive the ductwork will be.
The front wall will be half high then glass block this is the wall that the toilet will be on and no vent pipe will be possible because of the glass block.
In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover.
How to vent a drain out a side wall.
If the drain line runs away from the wall where you want the vent use a reducing y and a 45 degree street elbow to point the vent line toward the wall.
A drainpipe attached to the p trap goes into an opening in the wall.
Let s say you have a bathroom located away from an exterior wall and it s not possible to vent the fan through the roof.
Drain pipes take the wastewater to the soil stack.
Through the stack sewer gases are carried up to the roof through vent lines.
If the toilet drain does not connect directly to a vent you must find another way to vent it.
Vent under the floor to get outside.
The horizontal vent pipe runs right next to the closet.
Since the joists run the wrong way there is a bedroom next to the bathroom.
This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.
More powerful fans also tend to produce more noise.
But you can minimize the noise by installing an inline fan somewhere along the duct run that s away from your living space.
When you need plumbing in exterior walls.
We re all taught not to run plumbing in exterior walls.
I think it ll be around thirteen feet including the bathroom area to run a duct from that point above the ceiling along the adjacent bedroom to get to an outside wall.
Toilet vent option 1.
The new room will be in an alcove with the back wall being the outside of the house.
I live and work in the cold boston area.
Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out.
I can only run the 3 waste line in one direction and that will be between the floor joists.
A vent is an important part of a drain and it performs two functions.
The first is to allow air into the drain line to replace the vacuum created by flowing.
Ductwork is what will connect the fan to the outside.
Behind the wall where you can t see a vent line and drainpipe lead to a soil stack which is the control center of the wastewater system.