How To Vent A Basement Bathroom Fan Through The Wall

A 3 or 4 inch duct connects to the outlet on the fan housing and runs to a side wall or to the roof and connects to a vent cap that allows the.

How to vent a basement bathroom fan through the wall.

Small bath fans provide adequate bathroom ventilation for 79 sq ft. If you vent through a soffit where attic vents are often located the moisture will get sucked back up into the attic or roof venting. No matter the location of the bathroom you can vent the exhaust fan through the wall. And under while medium bath fans work well for bathooms 70 to 100 sq ft.

Adding a basement bathroom. Adding a basement bathroom is a big complicated project. But what happens when a building s design makes it difficult or impossible to vent a bath fan to the exterior. There are really only three venting options.

The 2nd bathroom vent drips on the floor and is ruining the ceiling. Here is the link to th. We will focus on installing the dwv system drain waste and vent which is the most difficult part of plumbing a basement bathroom. The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof.

And please don t even consider venting it to the attic or into a wall cavity because it will spew moisture into the space and may lead to mold damage wood decay and it attracts insects. Ductwork is what will connect the fan to the outside. If you vent through the roof condensation will drip back into the interior. There aren t many options for routing an exhaust fan to the outside of the house.

I think the main benefit of venting your bathroom fan through an exterior wall is that you don t have to take it up to the roof. For bathroom over 100 sq ft use a large or exhaust fan to circulate the air. The bathroom exhaust ventilation fan disperses air through an opening in the fan housing which is usually 3 inches in diameter and ideally faces in the direction of the ventilation system outlet. A fan or fan light combination is installed in the bathroom ceiling then vented through the roof or through a soffit or side wall.

Thousands of diyers successfully tackle the job every year and so can you. I recommend that my clients vent their bath fans out a gable wall if at all possible when not using an hrv or erv that is. With the flip of a switch odors and excess moisture are easily vented outside. The first step in figuring out how to install a bathroom fan is cutting a hole based on the size of the fan you need.