In this video this old house host kevin o connor works with a professional electrician to install a ventilation fan in a bathroom.
Installing bathroom exhaust fan.
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.
Ceiling fans vent either into the.
If you have a bathroom with a separate enclosed toilet you ll also need an additional fan for that space.
Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less.
I ve replaced lots of this style broan fan and they are very popular.
Learn the secrets to running anew exhaust line through the outside wall install a fan and connect the ducting and electrical.
Note that the bathroom vent fan must always exhaust to the outdoors.
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.
Another consideration to think about is the placement of your fan.
For quick reference a 50 square foot bathroom needs a 50 cfm fan.
Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof.
The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent.
For bathroom over 100 sq ft use a large or exhaust fan to circulate the air.
There are wall mount exhaust fans as well as ceiling exhaust fans.
And under while medium bath fans work well for bathooms 70 to 100 sq ft.
Never allow the duct to simply blow into an attic crawlspace or other enclosed area.
Avoid venting through a soffit vent or ridge vent.
Here is the link to th.