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.

Installing bathroom exhaust fan.

In this video this old house host kevin o connor works with a professional electrician to install a ventilation fan in a bathroom. Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. 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.

Ceiling fans vent either into the. And under while medium bath fans work well for bathooms 70 to 100 sq ft. For quick reference a 50 square foot bathroom needs a 50 cfm fan. Avoid venting through a soffit vent or ridge vent.

Small bath fans provide adequate bathroom ventilation for 79 sq ft. Another consideration to think about is the placement of your fan. Note that the bathroom vent fan must always exhaust to the outdoors. For bathroom over 100 sq ft use a large or exhaust fan to circulate the air.

Never allow the duct to simply blow into an attic crawlspace or other enclosed area. 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. I ve replaced lots of this style broan fan and they are very popular. Here is the link to th.

There are wall mount exhaust fans as well as ceiling exhaust fans. See below for a shopping.