Bathroom exhaust fans are a must in any modern bathroom, including those in your “old” home. Trapped moisture can do even more damage to an older home which also may not have a bathroom that is as well insulated. Installing a bathroom exhaust fan can prove difficult depending on the location of your bathroom but here are some tips from Old House Journal.
* Locate the fan close to the shower.
* Keep the run of duct as short and straight as possible.
* Seal the ducts so moisture can’t escape, and seal the fan housing to the ceiling with a bead of caulk.