Exhaust Fan Size For Toilet

You multiply length times width times height.

Exhaust fan size for toilet.

An effective bathroom fan should be capable of replacing the entire volume of air 8 times per hour or every 7 5 minutes. Check the size of the exhaust port on the fan to make sure it fits your ductwork if applicable. If your bathroom has a toilet or shower area enclosed by a door it s a good idea to install a separate exhaust fan for that area. For a standard 10ft by 10 ft bathroom with an 8 ft ceiling you will need an exhaust fan capable of 106 67 cfm.

The formula to calculate bathroom exhaust fan size reads as follows. If the enclosed space is small a 50 cfm fan should suffice. Double hanger bar system for ideal positioning. To arrive at your required cfm simply divide your bathroom s volume by 7 5.

Includes built in 6w led light. 45 watt 4 duct connector. Determine the required cfm for your bathroom fan. But o brian suggests a simpler rule of thumb.

1007 rpm fan speed. You now need to multiply 960 x 15. For bathrooms less than 100 square feet you can just go with 1 cfm for every square foot of floor area he says. Cubic volume 7 5 cfm necessary.

The minimum requirements say that this air should be changed 15 times an hour. 10 feet x 12 feet x 8 feet that computes to 960 cubic feet of air in the room. Here s how we get this number. For example if your bathroom is 80.

10ft 10ft 8ft 7 5 106 67 cfm. 120 cfm and 1 2 sones. For example a bathroom with a volume of 1000 cubic feet 28 3 cubic meters needs a fan capable of moving 1000 7 5 or 133 cfm 3 8 cubic meters per minute. Otherwise use the appropriate calculation based on the room size.