How much fan power do I need?

Discussion in 'First Time Marijuana Growers' started by pftek, Dec 31, 2009.

  1. #1 pftek, Dec 31, 2009
    Last edited by a moderator: Dec 31, 2009
    For a 4x3x8 foot space?

    also is this the right way to do it? have one duct on the lights and one just sucking up the air in the box? all using one fan? Where do I place the fan? does it have to be directly on the light? or not really?

    edit: 600 watt HPS/MH digital ballast
     
  2. Nah, you don't want the fan on the light. Hang it on the ceiling or outside your grow space and run flex hose to one side of your hood, leaving the other hood connection open. I'd suggest a 6" inline centrifugal vortex/valuline-style blower with a fan speed controller. Are you gonna have a carbon filter?
     
  3. Get a 400cfm-700+ cfm fan. Do you have an air cooled reflector?
     
  4. deciding on it. i think i will get one yea?
     
  5. If you have the extra money you might as well.
     
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