thanks very muhc for the pound info on 12/12 light cycle hps i was wondering about cost and that sound okish lol im sorta unemployed despratly seeking work i can get a full extractor fan like this one...well this IS it exact same one= http://www.growell.co.uk/p/0231/GroW...tion_Kits.html

if i cut a round hole in roof of closet then hung the fan tube throu the hole and store the actual fan in the loft would that do for the heat?