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Old 05-06-2010, 09:48 AM   #1
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Bathroom exhaust vent clearances


I know that a dryer exhaust vent needs to be 3' or more from any windows and doors in all directions.

Does a similar rule exist for bathroom exhaust fan vents? If so, what? And where is it in the code?

While we're at it, how about kitchen exhausts?

Thanks!

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Old 05-06-2010, 04:57 PM   #2
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Bathroom exhaust vent clearances


Exhausts need to be 10' from an intake , including windows and doors. The exception is the exhaust can be closer if it's 3' above the opening.

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Old 05-06-2010, 05:46 PM   #3
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Bathroom exhaust vent clearances


10' from any window or door means that I can't have an exhaust any where on my house
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Old 05-06-2010, 06:00 PM   #4
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Bathroom exhaust vent clearances


We will all have to dig a hole and go back to these.
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Old 05-07-2010, 06:13 AM   #5
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Bathroom exhaust vent clearances


Yeah, I am not so sure about 10'. Marty, do you have a code reference on that?

I haven't found anywhere in the code where it indicates clearances for bathroom exhaust fan vents. Anyone?
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Old 05-07-2010, 04:55 PM   #6
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Bathroom exhaust vent clearances


Quite sure that was code when I did new construction. Might want to check with your local building inspector since not every place follows the code book to the letter. Here it has to be 3' above or 10' away to pass inspection unless there is no other option.

I'll see if I can find my code book but it's been 10 years so that might not be easy.
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Old 02-22-2011, 11:12 AM   #7
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Bathroom exhaust vent clearances


Getting ready to run all three - kitchen, dryer, and 4 bath fans. Curious if this was ever decided upon.
I know in the commercial world, ie automotive paint booths, the exhaust had to be either 10' away, or 3' above the intake, but I can't imagine residential code demanding that.

Any thoughts?

Thanks,
Jules

I see that Marty S. is from Nebraska. I was on a crew that installed a paint booth in Lincoln, and it was some of the strictest codes we'd ever encountered.


Last edited by JulesB; 02-22-2011 at 11:58 AM.
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