Bathroom vent fans - can I run two to the same exhaust vent?

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DanM
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Bathroom vent fans - can I run two to the same exhaust vent?

Post by DanM » Mon Aug 07, 2017 7:24 am

First off, I wanted to say thanks for making all these videos. We bought a fixer upper a few weeks ago and they've been a huge help doing my own electrical and plumbing, which I've never done before. Passed my electrical inspections thanks to you guys!

So it's a pretty simple question but it's hard to google a straight answer, I get a lot of conflicting information. I'm adding an ensuite adjacent to the existing bathroom on the second floor. Can I run two bathroom exhaust fans to the same roof vent? My plan is to run the 4" exhaust duct from each fan to a 6" Wye joint (each 4" duct would have a 4" to 6" adapter at the connection to the 6" Wye). From the Wye I would run 6" duct to the roof vent.

I'm in Ottawa in case that helps.

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Shannon
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Re: Bathroom vent fans - can I run two to the same exhaust vent?

Post by Shannon » Mon Aug 07, 2017 7:32 am

no they should be on there own vents. The main problem is that there is no good way to keep them from back feeding back to the opposite fan in the other room
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DanM
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Joined: Mon Aug 07, 2017 6:39 am

Re: Bathroom vent fans - can I run two to the same exhaust vent?

Post by DanM » Mon Aug 07, 2017 7:39 am

Thanks.

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emtnut
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Re: Bathroom vent fans - can I run two to the same exhaust vent?

Post by emtnut » Mon Aug 07, 2017 9:52 am

DanM wrote:
Mon Aug 07, 2017 7:24 am

I'm in Ottawa in case that helps.
I won't hold that against you ... We'll still help you out :lol:

I'm up near the 'prior :mrgreen:
~~ I'm right on 34 of 100 answers ... That ties me with Babe Ruth :mrgreen: ~~

DanM
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Joined: Mon Aug 07, 2017 6:39 am

Re: Bathroom vent fans - can I run two to the same exhaust vent?

Post by DanM » Tue Aug 08, 2017 6:52 pm

Could be worse, I could be from Toronto!

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