A licensed professional must install your new bathroom ventilation fan. However, here are a few things you should know about installing the fan.
Installing Your New Bathroom Exhaust Fan
Only install a properly sized fan for your bathroom and ventilation needs.
Bathrooms with ceilings greater than eight feet may require additional ventilation.
An enclosed toilet room (as in the master bathroom) should have its own ventilation.
All ventilation should be ducted outdoors- not into the ceiling joists or attic.
3/4 Inch Undercut
The bathroom door should be undercut at least 3/4″ so that fresh air may enter the room.
Fans approved for installation in wet areas should be located over or very near the shower or tub.*
Ducting Your New Fan
AeroPure recommends a non-perforated four-inch diameter duct which allows for easy installation between and through both eight- and ten-inch ceiling joists. A larger diameter duct may become an issue of ease-of-fit and compromise the integrity of both the ceiling joists and the exterior aesthetics of the house.
Less is Better
Try to avoid any bends or elbows which will reduce the fan’s performance. If you must bend or elbow the duct, be sure you allow at least a two- to three-foot run out of the fan before the air passes through the first elbow.
An elbow or bend that is too close to the fan’s exhaust port will be pushed back into the fan and compromise the fan’s performance. A long-radius elbow, rather than a sharp 90° elbow, will help maximize the fan’s performance CFMs and minimize noise sones.