Toilet Exhaust Fan Size

Otherwise use the appropriate calculation based on the room size.

Toilet exhaust fan size.

10ft 10ft 8ft 7 5 106 67 cfm. If the gap under the door in an. Building code does not specify bathroom vent locations but in any size bathroom it is the most logical to install it over or as close as possible to the plumbing fixture that requires it. These fans expel air upwards through the ceiling and can be exhausted into the roof cavity or ducted to be exhausted outside.

A ceiling exhaust fan as the name suggests is an exhaust fan that is mounted on a ceiling. If the door to the enclosure is closed and there s no gap at the bottom of the door the fan will be starved of makeup air and will perform poorly. For a standard 10ft by 10 ft bathroom with an 8 ft ceiling you will need an exhaust fan capable of 106 67 cfm. All you need to do is select the application from the dropdown enter the size of the room and we will provide you with a general capacity range m3 hr that you should be looking to achieve from the extraction fan.

The formula to calculate bathroom exhaust fan size reads as follows. When choosing a. That said while most people know that s it s important to have and use a bathroom. Learning how to calculate cfm for a bathroom fan will help you purchase the right size fan for your space.

Here s how we get this number. In order to ensure healthy indoor air quality it s essential to have properly sized ventilation especially in airtight homes. Simply enter the dimensions of your bathroom in the calculator below to determine the minimum size vent fan you need for the bathroom in your home. Jetted or spa tub.

100 cfm a large bathroom with a jetted tub a toilet and a shower a common configuration in new homes would need a 200 cfm ventilation fan such as the broan l200 ventilation. To be effective a bathroom fan needs to be powerful enough to completely replace the air in the room about 8 times every hour. When installing a vent fan make sure there s at least a 1 2 gap under the bathroom door to allow fresh air to enter the room when the fan is running. Additionally as the modern trend to have larger bathrooms remains popular the requirement for proper air ventilation is even more important.

The effectiveness of the fan will be rated in cfm or cubic feet per minute of air moved. The calculator on this page is provided as a general guide designed to help you select an exhaust fan which may be suitable for your needs. 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. Use our handy online calculator to see what size vent fan you need for your home.

Just remember that the fan needs airflow to do its job. Toilet 50 cfm shower stall 50 cfm whirlpool 100 cfm 200cfm bathroom exhaust fan. If the enclosed space is small a 50 cfm fan should suffice. This page is designed to be a general guide for selecting an exhaust fan based on the size of the room and the type of application the fan will be used for.

Properly sizing a bathroom exhaust fan.