How To Replace A Bathroom Exhaust Fan Without Attic Access

You must cut the hole bigger to allow the protruding parts of the housing to make it through the cutout.

How to replace a bathroom exhaust fan without attic access.

The first and most important thing is to determine the fan size as well as the fan duct size. Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less. Remember new bathroom fans rated for 4 ducts were designed to be used with that specific vent size. If your new bathroom exhaust fan has a 4 duct opening and your bathroom vent is 3 then you will need a 4 to 3 duct adapter to connect them together.

When you re installing the bathroom fan into a ceiling below another floor your new fan won t simply slide into a size for size opening. If the hole is too small then you ll need to increase the dimensions. For bathrooms with an existing ceiling light fixture most people simply purchase a combo fan light model to replace the fixture. Those individuals who are installing a bathroom exhaust fan without attic access will want to first measure the hole in the ceiling to make sure your new fan will fit in.

How do you do this. Because you can do everything related to replacement underside. Use the existing wiring and switch to turn the fan and light on and off simultaneously. Measure the fan housing and duct.

Replacing the exhaust fan without attic access. How to install a bathroom fan without attic access things to do before replacing a bathroom fan 01. I ve replaced lots of this style broan fan and they are very popular. Installing a bathroom fan without attic access.

Follow the manufacturer s instructions for installing and wiring your particular bathroom fan model. You don t need to worry about attic access. Otherwise you will have to install a new 4 duct to the outside.