Intake and exhaust fan location

Discussion in 'First Time Marijuana Growers' started by PlatosRep, Jan 17, 2010.

  1. #1 PlatosRep, Jan 17, 2010
    Last edited by a moderator: Jan 17, 2010
    Hi I just finished my mother plant room and I have one fan on the bottom of the box and one at the top. Which one should be intake and which one exhaust.



    their both same cfm
  2. Exhaust should be at the top by the lights to help minimize heat.
  3. Heat rises, so intake=low, exhaust=high.
  4. How big is you room ? most don't use a input fan . just use large vent holes
    IE if your exhaust fan is 6 inches then vent should be 8 inches atleast

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