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Old 10th January 2007, 08:01 PM   #1
kimado is offline kimado  United Kingdom
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Join Date: Nov 2006
Default multiple vents?

Hi i was just wondering if i were to use say three 3" vents do i work out the theoretical length as i would for one vent or would i need to work out the sd of the combined vents, and work from there?

also i read somewhere that if you do use more than one vent you should divide the vb by the number of vents? anyone help me with this?

Regards Kimado(",)
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Old 11th January 2007, 01:40 AM   #2
Geoff H is offline Geoff H  Australia
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Join Date: Oct 2006
Hi Kimado, this on line calculator gave predictable results for 16 ports.

http://www.ajdesigner.com/phpvent/su...n_length_l.php

Just throw the numbers at it, and watch the units in the right hand fields.

Geoff.
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