Hey there great info! From what I've read I'm goning to try and apply it to my situatiuon. Maybe you could help or advise? I have an old dryer exhaust in the basement that I want to convert to a fresh air intake. I think its only 6', my question is if i get a large enough centrigufal fan to suck air inside from outside could I split the intake in to a cooltube 1000W Hps and the other spit use as fresh air for the room or would that cause no vacum pressure and just screw up with cooling the light?

any advice would be a huge thanks!!!

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