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08-15-2011, 01:25 AM
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#1 |
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Member
Join Date: Oct 2010
Location: Austin - Texas
Posts: 1,402
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Return Filtr Grille
I made this table, can anyone confirm these values?
__________________
**Always kill the power ** Hot air rises, but heat will always move from higher to lower temperatures. ** Real man shoot in manual. ** If it ain't grounded, it ain't dead. |
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08-15-2011, 05:13 AM
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#2 |
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 19,045
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Return Filtr Grille
Those numbers are correct, as long as you remember that they are the AK/free area numbers, not the grille size numbers.
EG: A 20X20 filter grille, is 400 sq in total, but has a AK/free area of only 276 sq in/1.917 sq ft. So at 575 CFM it has a air velocity of 300 FPM, at 767 CFM it has a air velocity of 400 FPM. Go to Hart&Cooley's website, and download their register/grille specs/tech guides. |
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08-15-2011, 12:53 PM
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#3 |
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Member
Join Date: Oct 2010
Location: Austin - Texas
Posts: 1,402
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Return Filtr Grille
__________________
**Always kill the power ** Hot air rises, but heat will always move from higher to lower temperatures. ** Real man shoot in manual. ** If it ain't grounded, it ain't dead. |
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