Also on a long run especially vertical you are bound to have problems like you have now.
Can you use pvc pipe for bathroom exhaust fan.
If you need to reduce the 4 to 3 tell them this or just explain what you need.
If they did run the exhaust fan into 2 pvc you will not get the air movement you need.
Most exhaust fans have either a 3 or 4 outlet.
A cold duct allows condensation of moist indoor air leading to drips from the exhaust fan.
By the way some home depot s and lowe s sell this stuff if you know what to look for.
Using pvc pipe for bathroom exhaust fan duct.
You will get condensation build up from steam moist air when the pipe runs through a colder area.
Use flex vent pipe to go from the fan to the vent pipe pvc.
That said there is nothing stopping you from using regular rigid metal ducting.
On 2020 01 31 by mod use 4 pvc pipe as an exhaust duct.
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I m not familiar with a code that requires rigid ducting for bathroom fans.
Active 4 years 1 month ago.
Is it legal to have the flex tube vented to a dormer vent but the tube ends 1ft short of the actual vent and not connected directly to it.
Otherwise the exhaust duct gets too cold when it runs through the attic.
Ask question asked 4 years 1 month ago.
What is california code on bathroom exhaust fans primarily at the point of how the tubing and what tubing is connected to.
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.
To connect to the pvc go to an hvac shop and ask for a male 4 to a female connector.
Does anyone know what i should use to connect my bath fans to pvc pipe.
Mass local here unlike dryer ductwork it s not going to be subjected to high heat or a potential for significant lint accumulation.
You can use round galvanized ductwork or pvc sewer pipe.