hi there mate , i was looking through the forums as i am having heat problems in my dr60 like u was. glad to hear u have sorted yours out , basicly i have a dr60 in my walk in walldrobe. im running a 250w hps light , the only thing in my tent is my 250w light and my 4" carbon filter attached with ducting attached venting up into my loft out of a vented roof tile. i had to put my 4" TT fan in the loft as it was way to loud for my bedroom. i have a 6" clip on fan blowing about inside the tent plus a little tower fan in the corner , but when tent is all zipped up air tight the temps are going through the roof 91-94 df! im looking at getting a 4" intake fan blowing air into the tent by 1 of the vent holes on the side. im just hoping it will work! but... the intake fan that i buy has to be less powerfull that my TT fan pulling the air out as i will have oder problems during flowering. what do u think mate??? thanks for ya time