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Bathroom Exhaust Question (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

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Our master bath doesn't have an exhaust fan and I'd like to add one to help with the humidity. It's the primary bathroom of use upstairs and the 2nd full bath is on the other side of the wall.

Can I use a splitter to tie the other bathroom's exterior vent to the new exhaust? If I did I'd put the splitter closest to the vent to help prevent blow back to the other bathroom. They're both smaller bathrooms (50sqft and 100sqft).

Or is it just better to put it on it's own exhaust vent?

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[–] [email protected] 2 points 1 year ago (1 children)

100% on check valves; technically each fan has to have it's own vent per code. Decent fans have a check in them but better safe than sorry. I'd put a separate exhaust unless it's really hard to get to.

+1 on humidity sensors but they can make wiring more complicated especially if you have a light as well.

I love Panasonic's. Not cheap but humidity sensor, variable cfm and quiet.

Noisy fans make you feel better but all that higher pitched exhaust fan noise stays in the room to make you feel better but trust me the bass noise comes through outside!

[–] [email protected] 1 points 1 year ago

Thanks for the feedback. Honestly both routes are probably the same amount of work so maybe I just get done with it and do a new vent so I don't need to worry about it when it comes time to sell.