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ventilation for grow box

  • by heavyhitter25
  • Dec 11 2010 05:34 AM
  • 3 Replies
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Posted 11 December 2010 - 05:34 AM

is it ok I use a small intake take fan and a larger exhaust fanfor the grow box ...

or should i do the opposite
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Posted 11 December 2010 - 11:02 AM

From what I have read, you need double the intake as the exhaust, so if you have a 4" fan on exhaust you want 2 4" holes for intake, also don't put fans on intake holes, the negative pressure will keep the smell out.

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Posted 11 December 2010 - 11:49 AM

Big fan on the exhaust. Small or no fan on the intake.

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Posted 11 December 2010 - 07:41 PM

ight thanks.. big exaaust smaller intake


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