Exhaust Fan Size For Toilet

10 feet x 12 feet x 8 feet that computes to 960 cubic feet of air in the room.

Exhaust fan size for toilet.

Otherwise use the appropriate calculation based on the room size. To arrive at your required cfm simply divide your bathroom s volume by 7 5. You now need to multiply 960 x 15. The tatsumaki ld 120 bathroom exhaust fan features standard size housing that fits between most ceiling joists.

A diameter of 4 inches is common for exhaust ducts but some high cfm fans fit a 6 inch diameter duct. Check the size of the exhaust port on the fan to make sure it fits your ductwork if applicable. An effective bathroom fan should be capable of replacing the entire volume of air 8 times per hour or every 7 5 minutes. 1007 rpm fan speed.

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. The minimum requirements say that this air should be changed 15 times an hour. 10ft 10ft 8ft 7 5 106 67 cfm. Double hanger bar system for ideal positioning.

Here s how we get this number. Cubic volume 7 5 cfm necessary. Determine the required cfm for your bathroom fan. Includes built in 6w led light.

120 cfm and 1 2 sones. For a standard 10ft by 10 ft bathroom with an 8 ft ceiling you will need an exhaust fan capable of 106 67 cfm. But o brian suggests a simpler rule of thumb. For example if your bathroom is 80.

45 watt 4 duct connector. 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. The formula to calculate bathroom exhaust fan size reads as follows. For bathrooms less than 100 square feet you can just go with 1 cfm for every square foot of floor area he says.