Installing Bathroom Exhaust Fan

For quick reference a 50 square foot bathroom needs a 50 cfm fan.

Installing bathroom exhaust fan.

See below for a shopping. 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. For bathroom over 100 sq ft use a large or exhaust fan to circulate the air. Another consideration to think about is the placement of your fan.

Ceiling fans vent either into the. 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. There are wall mount exhaust fans as well as ceiling exhaust fans.

If you have a bathroom with a separate enclosed toilet you ll also need an additional fan for that space. Small bath fans provide adequate bathroom ventilation for 79 sq ft. Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. Avoid venting through a soffit vent or ridge vent.

Never allow the duct to simply blow into an attic crawlspace or other enclosed area. Learn the secrets to running anew exhaust line through the outside wall install a fan and connect the ducting and electrical. 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. 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. And under while medium bath fans work well for bathooms 70 to 100 sq ft.