I am installing a bathroom exhaust fan. The duct run consists of a
section of 6" round aluminum flex duct, 6" round metal duct, and
terminates with a 6" wall cap like the one pictured at the following
What I am trying to find out, is the approximate equivalent of this
style of wall cap, in feet. For instance, the tech specs of my
particular fan says it can accomdate runs of 50 feet of 6" ducting. I
found the conversion for the flex duct (it was 2x), but have not seen
anything for the wall cap.
Does anybody know the conversion for a 6" wall cap, so I can use it in
my calculation and make sure I my duct system will perform adequately?