The window fan is used to circulate air from the outside into the room for a cooling effect.
Installing exhaust fan in bathroom window.
An exhaust fan should not be confused with an ordinary window fan.
Fans also have a sound rating measured in sones.
And under while medium bath fans work well for bathooms 70 to 100 sq ft.
Moisture laden air is the enemy of bathroom paint fabrics such as towels and curtains windows and doors and window sills.
For example a 100 square foot bath would require a 110 cfm rated fan.
Then instead of having the fan suck air out of the bathroom it would be set up to blow air into the the bathroom.
For bathroom over 100 sq ft use a large or exhaust fan to circulate the air.
To determine which size fan to buy for your bath multiply the room s square footage by 1 1.
Installing a bathroom fan is just the solution you need for spaces that never seem to get dry.
As your window is back to its appropriate position now you are ready to start the installation of the fan.
Bathroom vent fans are rated by how many cubic feet of air they can move in one minute known as the cfm rating.
Small bath fans provide adequate bathroom ventilation for 79 sq ft.
Now it s time to reassemble the window with lexan that has an appropriate hole to fit the exhaust fan into it.
Step 1 remove the window pane.
The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge 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.
Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof.
The window exhaust fan is used to drive the air out of the room.
Avoid venting through a soffit vent or ridge vent.
Now your window is ready for the installation of the exhaust fan.
Expelling bathroom moisture and odors makes for a far more pleasant bathroom experience for all.
Before you can install an exhaust fan into a window you will need to remove the window.