If the fan isn t accessible through an attic you ll need to vent through a sidewall of your house.
Installing bathroom fan vent.
The first step in figuring out how to install a bathroom fan is cutting a hole based on the size of the fan you need.
Draw a mark on the bathroom ceiling where you d like to install the vent fan.
Lower the fan into place and secure it with drywall screws then use flexible duct pipes to vent the fan to the outside.
If you don t have a duct leading to a sidewall vent call a professional for help.
Typically the bathroom vent fan motor is powered by the bathroom ceiling light fixture circuit.
These types of ducts and vents are typically installed when the house is built.
When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form.
Next measure out a square slightly larger than the protruding part of the vent.
For optimum performance locate it between the shower and the toilet.
And under while medium bath fans work well for bathooms 70 to 100 sq ft.
Your exhaust fan must vent outside.
Options for venting a bathroom exhaust fan include best to worst.
Some installers particularly in hotels or rental units hard wire the bath exhaust vent fan to force it on when the bathroom ceiling light is on thus assuring that the vent fan is in fact used.
Learn the secrets to running anew exhaust line through the outside wall install a fan and connect the ducting and electrical.
Gently pry up the shingles around the hole making room for the vent to slide under the first course.
Bathroom exhaust fans perform an important function by removing excess moisture from your home.
Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.
To install a bathroom fan go into your attic and clear away the insulation where the fan will go then return to the bathroom and use a jigsaw to cut out the hole for the fan.
Use an in line fan to vent two bathrooms.
Small bath fans provide adequate bathroom ventilation for 79 sq ft.