Pvc For Bathroom Exhaust Fan

Most exhaust fans have either a 3 or 4 outlet.

Pvc for bathroom exhaust fan.

Using pvc pipe for bathroom exhaust fan duct 1 i have to run a length of about 3 meters of duct from the fan to the outside where there will be 2 90 bends. The nutone white 50 cfm exhaust bath fan the nutone white 50 cfm exhaust bath fan with light combines efficient air circulation and up to 100 watts of illumination in one easy installation. The bathroom exhaust ventilation fan disperses air through an opening in the fan housing which is usually 3 inches in diameter and ideally faces in the direction of the ventilation system outlet. Required bathroom vent fan ventilation rate in cfm this ventilation code specifies a bathroom exhaust airflow rate for toilet rooms and bathrooms not served by a window of adequate size of 25 or 50 cfm ft for hotels motels resorts and dormitories and a slightly more modest 20 50 cfm for private dwellings.

If you have a bathroom with a separate enclosed toilet you ll also need an additional fan for that space. By fabricating bath fan duct runs from rigid metal or pvc plastic you ll get the best long term performance from your fan. If you need to reduce the 4 to 3 tell them this or just explain what you need. There are wall mount exhaust fans as well as ceiling exhaust fans.

Use metal or pvc for ductwork avoid using inexpensive flexible duct flexduct to vent a bathroom fan. You really don t want to use pvc for a supply air fresh air duct however. Also on a long run especially vertical you are bound to have problems like you have now. If they did run the exhaust fan into 2 pvc you will not get the air movement you need.

Another consideration to think about is the placement of your fan. Ceiling fans vent either into the. To connect to the pvc go to an hvac shop and ask for a male 4 to a female connector. You will get condensation build up from steam moist air when the pipe runs through a colder area.

It can crush or tear easily which will impede air flow. Exhaust ducts can be pvc because even if the pvc has a little off gassing it doesn t matter for exhaust ducts. For quick reference a 50 square foot bathroom needs a 50 cfm fan. A 3 or 4 inch duct connects to the outlet on the fan housing and runs to a side wall or to the roof and connects to a vent cap that allows the.

The instructions on my new panasonic bath fan recommend using a short piece of flexible duct to connect the fan outlet to the rigid exhaust pipe possible noise transmitted and amplified by the rigid connection. By the way some home depot s and lowe s sell this stuff if you know what to look for. Use flex vent pipe to go from the fan to the vent pipe pvc.