While bathroom exhaust fan installation is not the easiest home improvement project the bulk of the work is centered around the physical rigors of standing on a ladder and working above your head along with the more taxing work of crouching in your attic while wearing a dust mask or respirator.
Installing bathroom exhaust fan.
I ve replaced lots of this style broan fan and they are very popular.
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.
In this video this old house host kevin o connor works with a professional electrician to install a ventilation fan in a bathroom.
Note that the bathroom vent fan must always exhaust to the outdoors.
If you have a bathroom with a separate enclosed toilet you ll also need an additional fan for that space.
Another consideration to think about is the placement of your fan.
See below for a shopping.
Avoid venting through a soffit vent or ridge vent.
There are wall mount exhaust fans as well as ceiling exhaust fans.
Small bath fans provide adequate bathroom ventilation for 79 sq ft.
Never allow the duct to simply blow into an attic crawlspace or other enclosed area.
For bathroom over 100 sq ft use a large or exhaust fan to circulate the air.
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Learn the secrets to running anew exhaust line through the outside wall install a fan and connect the ducting and electrical.
And under while medium bath fans work well for bathooms 70 to 100 sq ft.
Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less.
Also the installation of the bathroom exhaust fan will go much quicker if you ask a spouse or friend to help be in the attic while you work from below or to hand you tools while you re on.
For quick reference a 50 square foot bathroom needs a 50 cfm fan.