i didnt read through them all sorry but... u think maybe the mylar
and Styrofoam maybe the problem considering they are used to
keep heat in

like for a body going into hypothermia or when u want to keep ur
beer cold in a cooler
i have like 8 - 48 watt cfls and mine doesn't go over 82

and its sounds like ur intake and outtakes are setup right after
what every one else has said

but hey thats just my 2 cents
twitch Reviewed by twitch on . Can't get below 93 deg.......... Heres my setup....... Closet - 48" H x 20"W x 20"D Single Waterfarm w/ 6" airstone 6 x 42 watt CFL Ducted 4" intake and exhaust mylar covered walls ( mylar wrapped around styrofoam panels) The room the closet is in is air conditioned down to 70 degrees I have my temp gauge located about 4" under the lights.......Is that the wrong place????? I can't get the temp in the box any lower than 93 degrees and thats with the room down to 70 and the fans constantly going. What am I doing Rating: 5