How To Replace A Bathroom Exhaust Fan

And under while medium bath fans work well for bathooms 70 to 100 sq ft.

How to replace a bathroom exhaust fan. Before even purchasing a new bathroom exhaust fan it may be a good idea to remove the fan cover and measure the exhaust fan housing in between the drywall. If your new exhaust fan is larger you will need to cut some of the drywall with a keyhole saw and possibly attach wood supports to the joists. Turn off the power to the fan at the main breaker panel.

The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent. For bathroom over 100 sq ft use a large or exhaust fan to circulate the air. Some motor plates release by pressing or prying on the side of the fan housing.

Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof. No cut or roomside bathroom fan models can be installed in new construction or used to replace older fans in existing construction. There s nothing wrong with increasing the size of the ductwork but don t ever do the opposite or you will restrict the exhaust from the fan.

Then unplug the fan and remove the motor plate photo 2. First you ll need to carefully remove your old fan and disconnect the vent pipe and wiring. All in it cost about 125 for the fan and supplies.

Video tutorial on how to replace your bathroom exhaust fan in 5 minutes or less. However the replacement fan was 4 so i bought a duct reducer installing the 4 end onto the fan and the 5 end onto the new ductwork. Then you ll put the new fan in position.

Small bath fans provide adequate bathroom ventilation for 79 sq ft. 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. Installing a new bathroom fan won t take very long since the connections and wiring are already in place.