Replacing Bathroom Wall Fan

The installation is easiest if you re replacing an existing fan.

Replacing bathroom wall fan.

There s no such thing as a one size. Measure the ceiling opening and determine if it is large enough to accommodate your new fan. Installing a bathroom vent fan through a wall article video transcript. If you can locate a joist cut drywall and handle basic electrical work you can do the whole job in about two hours and save about 200 on the installation.

You ll need a stud finder a drywall saw a drill and screws and aluminum duct tape. The easiest way to replace a bathroom vent fan is to keep the old housing and replace the fan and motor. Bathroom exhaust vent fans are needed to remove excess humidity that can lead to mold or mildew and cause damage to your walls or ceiling. You can use the existing switch wires and ductwork.

Push the wire connections back into the housing and replace the junction box cover when you re done. Make sure that you join the correct colored wires white to white black to back yellow to yellow etc. Here s how to replace an existing vent fan with a new one. Replacement kits designed for this purpose allow you to mount the new fan motor on a plate identical to the one that holds your existing fan motor.

Use the information below to select a fan. Unlike older vent fans new models are much quieter and more efficient. If not you must cut around. I ve replaced lots of this style broan fan and they are very popular.

Buy the right size for your bathroom. Remove the existing fan leaving the old duct work and wiring. Also it helps to get a fan that s the same size as your existing fan so you won t have to adjust the size of the ceiling hole. I temporarily taped a plastic bag over the hole after removing the fan.

Since the fan is also connected to the light and there isn t a window in the bathroom i set up a work light outside the door. It s not the quietest model available but at 0 6 sones about 25 decibels it s a huge improvement over the old 4 sone about 60 decibels fan we re replacing. I then removed the old fan so i could find a replacement that would fit without having to cut a bigger hole into the drywall. Switch off the power at the fuse box.

When choosing a vent fan for your bathroom look for a model that is quiet 1 5 sones or less and moves enough cubic feet per minute cfm of air as discussed in sizing a bathroom vent fan.