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4in vs 6in bathroom exhaust line

1K views 5 replies 3 participants last post by  plummen 
#1 ·
Hi All,

I just got a new NuTone 130cfm bathroom fan and it has either a 6 or 4 in adapter. I know I know, 6 is better, but is this a huge differece? If so, I need to get all new vents and lines.

Thanks.
 
#4 ·
4" will have more velocity which would help get it out quicker,i guess Ive never seen a fart fan with a 6" vent hooked to it.
That thing would have to be huge,do you have a seat belt on the toilet? :laughing:
 
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#3 ·
Thanks man. I'm going to stick with the 4in because thats what the vent bundle came with. I did go out and buy a new insulated 4in line though. The line in the vent bundle is not insulated and this will be in the attic.

Thanks for taking the time to reply.
 
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