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- This topic has 1 reply, 2 voices, and was last updated 4 years, 5 months ago by .
Fan efficiency (CFM loss) due to ducting
I’m trying to size my ventilation system using inline fans such as the Vortex. Is there a table or rule of thumb for CFM loss through ducting? I would be interested in these values for 4″, 6″ and 8″ duct diameter. I may have longer runs, so this will be important.
Thanks for your help.
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