How To Install A Bathroom Vent Through The Wall

Can we install it in an outside wall instead wall mounted vent fans are available though less common and may be harder to install.

How to install a bathroom vent through the wall.

Barb asks we would like to install an exhaust fan in our bathroom to remove excess moisture but do not have an attic to vent it through. A down through soffit exhaust vent design by leaving warm air in the exhaust duct when the fan is off creates a heat trap that reduces heat loss out of the bathroom through the exhaust fan duct when the fan is off in comparison with up routed vents or even horizontal vents through a gable end wall. Pick up the fan s housing and using its inner portion trace the edges of it onto the wall with a marker. No matter the location of the bathroom you can vent the exhaust fan through the wall.

Remove the wall cap and apply a bead of silicone adhesive to the siding and gasket around the hole. Over a toilet works best. Slide the wall cap into the hole and press it against the siding. Cut a foam rubber gasket to fit into any spaces where the wall cap doesn t contact the siding.

Using the drill now make holes through the interior wall at the four corners on the tracing. If your exterior siding is vinyl or fiber cement you will have an easier time cutting the hole. Choose the exact area where the exhaust fan will be installed. From the attic locate the nails and mark the location of the fan with a pencil.

The location of the bathroom will determine how extensive the ductwork will be. Secure it to the siding with four 1 inch stainless steel screws. You may be able to configure a short route. Read on for more.

Avoid placing your bathroom exhaust fan over a tub or shower. If you want to vent a bathroom fan through an exterior wall you will have to cut a 3 inch or 4 inch hole with a hole saw drill bit. Mark the location of your fan by inserting a 16 inch roofing nail into the drywall at each corner so the nails protrude into the attic. Learn the secrets to running anew exhaust line through the outside wall install a fan and connect the ducting and electrical.