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Bathroom fan vents

I have 2 bathrooms, same floor, with fans but no ducts leading outside. Can I have 2 pieces of duct work merge into one, and then vent it to the outside?

Re: Bathroom fan vents

Bathroom vent fans are rated to pull so many CFMs and come with a piece of Flex Duct that is the right size for that application. I doubt that running two into one would matter but if you do do that make sure the single that the two are running into can handle the CFMs of both fans running at the same time. It probably won't matter either way but two fans running trying to push air thru an undersized duct will over amp. the motor and eventually burn it out. Good Luck!!! :)

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