Naw it's not deadr....we just b hi-rrrr! LOL I would use separate pots, the 800 is certainly not too small and is really gonna heat up that closet, so you'll need a pretty good sized fan or two and a fresh air and exhaust port to get rid of the heat...I have a 400w hps in a 4'wx5'dx7'h and heat is an issue, even in winter... my 2 cents...