Using a window exhaust fan can help you cool down your room without the use of an air conditioner. While they do not work as well as an air conditioner, they are not as expensive to operate. A window exhaust fan is used to evacuate the hot, humid air out of a room to make it more comfortable. This as the affect of cooling down a room. Installing the window exhaust fan is not a hard project, but does require some work with glass.
An exhaust fan should not be confused with an ordinary window fan. The window fan is used to circulate air from the outside into the room for a cooling effect. The window exhaust fan is used to drive the air out of the room.
Remove the Window Pane - Before you can install an exhaust fan into a window you will need to remove the window pane. This can be done easily if you are working with a double pane window. Simply remove it from the casing.
Cut Out Hole for Fan - There are two ways that you can cut the Lexan material for installing the fan. The first way is to drill a hole in the corners and cut with a jig saw. However, this can cause some splintering of the material. Another way is to score it with a glass cutter and tap out the piece when you can scored it several times. This will leave a clean cut without any ragged edges.
Drill Holes for Screws - Set the case back onto the Lexan and mark for the holes that are for the mounting screws. Remove the case and drill the holes with a cordless drill. Be careful and drill straight into the Lexan and not to the side.