HRV CFM volume - Canreef Aquatics Bulletin Board

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HRV CFM volume

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01-10-2012, 03:09 AM

wingedfish wingedfish is offline

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Join Date: Sep 2010

Location: Medicine Hat

Posts: 112

Air noise is a product of velocity. 90 cfm would be nothing for noise through 2 4 inch vents. Up that to 5 if your concerned. For comparison, bathroom exaust fans are generally 50-100 cfm through a 4 inch pipe.

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