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beecrofter[_2_] beecrofter[_2_] is offline
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Default Low CFM ventillation fan

On Oct 9, 7:37*am, ransley wrote:
On Oct 8, 3:08*pm, Phisherman wrote:

I'm looking for a decent quality inline fan that will move air through
a 4" pipe, 30 feet long, but at a low CFM rate, perhaps 10 cfm. *All
of the bath fans I've seen are 50 cfm or more or the variable speed DC
fans that are somewhat expensive ( $200). *


The longer the run, the less cfm, is it is rated 50 by itself, at 30
ft it will be measurably less, 50 is not much. Bath vent fans I have
seen are 70-110 cfm, they dont pull alot of air. You need to fing a
spec sheet , 50 may be to low for you, it wont be 50cfm comming out of
30ft pipe.


Strip the fan from a computer power supply, power it with a wall wart.