would you recommend

Got a grow box 2feet deep, 4feet wide 5 feet tall, and looking at using 4inch exhaust fan system with rating of 170cfm. Inline fan will be 170cfm as well. U think the will be sufficiant enough air flor to keep box cool, and smell down?

also, is it better to have higher cfm on inline over exhaust? Any help or info on this subject would rock...thanks

Depends on the light and temp of the cabinet. If I were you (this is not gospel), I'd get a Nextgen 400/600 digi ballast and a cool tube. Use a 300 or so cfm vortex or elicent 6" fan to exhaust and pull rather than push the air through that tube. Start with a 400 and if temps are manageable try a 600. You could get 4 to 6 good sized plants in there depending on your method, grow them in veg to 18 to 20 inches and flip to 12/12(some strains stretch more than others, especially Sativas). Put a small oscillating fan in there for air movement to strengthen the steams and you're good to go. Likely once the nutes/ph/stars align, you could easily pull 5-8 oz this way. Hope this helps!

dankasaurusrex said:

Depends on the light and temp of the cabinet. If I were you (this is not gospel), I'd get a Nextgen 400/600 digi ballast and a cool tube. Use a 300 or so cfm vortex or elicent 6" fan to exhaust and pull rather than push the air through that tube. Start with a 400 and if temps are manageable try a 600. You could get 4 to 6 good sized plants in there depending on your method, grow them in veg to 18 to 20 inches and flip to 12/12(some strains stretch more than others, especially Sativas). Put a small oscillating fan in there for air movement to strengthen the steams and you're good to go. Likely once the nutes/ph/stars align, you could easily pull 5-8 oz this way. Hope this helps!

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Well my current grow box is in 2nd bathroom with at 250watt hps, and mh for veg.(no cool tube I starting small, first grow. Since I havent started flowering, I leave the box door open now, and shut bathroom door during dark hours. Im on a budget, and the 170cfm fans are all I can afford now, you think they'll work, or are they to small to mask smell, and take care of heat? Plants are currenly 2weeks or so from flower stage-

Yea that fan will be fine for taking care of the heat. The smell issue is a different story, it all depends how you have it set-up.

Growit&Smokeit said:

Yea that fan will be fine for taking care of the heat. The smell issue is a different story, it all depends how you have it set-up.

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nice, hooking up carbon filter to a 170 cfm exhaust fan. thanks -