Intuition
Well-Known Member
I have altogether I have 273 watts of cfls. For cooling/air flow, pc fans. I cut square holes a tad bit smaller than the fan and shoved it in the hole. I then put a shoe box over the intake fans to keep it light proof when lights and fans are off. For the exhaust I put the homemade carbon filters over them to make those light proof. Cfls do get pretty hot especially when your working with 5+ make sure you exhaust fans are on the top and your intake fans are on the bottom. Also have a tiny little cage fan from walmart blowing down on the tops. Temps still pretty high close to 90. High temps are mainly the top 1/4 of the cab other than that temps stay around 80. Heat rises so thats why it gets so hot at the top of the cab. My cab is also completely sealed so fighting heat becomes a problem. Next grow I'm adding a couple more pc fans. Hope this helps.
Peace
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Yup they do get hot in there. Ive got over 450 watts of cfls for just one plant (I know crazy, should get a hps but dont got no way to remove hot air). Like killa said heat rises just mount a fan at the top.