Adding together Inline exhaust fans

Discussion in 'Grow Room Design/Setup' started by StrangeSoaceApe, Jul 15, 2017.

  1. I'm trying to achieve a CFM in my room at about 240. I have one inline that runs 170 and another that runs 75. Am I able to run them one after another and achieve the 240 CFM?
     
  2. No the 75 will restrict the 170 from achieving even 170

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  3. I ran 2 240cfm inline fans, 1 push, 1 pull, but i still only have 240 cfm.....i did it incase one fan dies, safety backup.

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  4. I can't find any 4inch induct fans that are 240cfm. The duct I'm using that leads out of the house is 4" is it possible to use a 6" exhaust fan and attach it to that duct?
     

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