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How To Install A Bathroom Fan
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An exhaust fan is desirable in any bathroom, and it is required in bathrooms that have no windows that can be opened.
Moisture and steam are the enemies of drywall and may cause hidden problems beneath the surface if not addressed with a bathroom ventilation fan..
All bathroom fans should be ducted to the outside through a roof or nearby wall. If possible, listen to a fan of the model you select before buying; some are objectionally noisy.
Moisture and steam are the enemies of drywall and may cause hidden problems beneath the surface if not addressed with a bathroom ventilation fan..
All bathroom fans should be ducted to the outside through a roof or nearby wall. If possible, listen to a fan of the model you select before buying; some are objectionally noisy.
Air circulation. Moving air replaces stale air and odors in a home. Air movement is important for body comfort in hot weather, and moving air cools surfaces and furnishings, reducing the amount of radiant heat in a room.
Fresh moving air also inhibits the growth of mildew and other fungi that can damage a house. The air within a home should be exchanged completely at least once every hour, although 2 or 3 complete exchanges are preferable. Bathroom fans should exchange the air in a bathroom completely every five minutes.
Fresh moving air also inhibits the growth of mildew and other fungi that can damage a house. The air within a home should be exchanged completely at least once every hour, although 2 or 3 complete exchanges are preferable. Bathroom fans should exchange the air in a bathroom completely every five minutes.
Installing a bathroom fan. Set the housing between two ceiling joists. Install a termination cap in the wall or in the roof by cutting a hole approximately 4½ inches in diameter through the sheathing and attaching the cap from the outside.
Run 4-inch flexible duct from the fan housing to the termination cap, using a tightening band or sheet metal screws to secure it at each end.
Run 4-inch flexible duct from the fan housing to the termination cap, using a tightening band or sheet metal screws to secure it at each end.
Run a two-wire No. 12 feeder cable from the fan to the circuit breaker panel. Then run cable from the fan to a switch box on the wall. Use one 2-wire, one 3-wire, or two 2-wire cables (all with ground wires), depending on how many switches are needed to control the fan motor, the radiant-heat lamp, the light, and so on.
Because all the wires in this switch loop will be hot, mark any white wires with black electrical tape.
Because all the wires in this switch loop will be hot, mark any white wires with black electrical tape.
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