got a new cab off the curb tonight that is about a 18 inches talle hope that helps the heat plus i got the fan going.got to rebuild the carbon filter still and before i put the plants in this cab it will have the heat shield in it.for now i just wont run the hps with the door shut.got a new tv off the curb to and it works perfect:thumbsup: even got the remote so anyway i have some building to do in the next couple of days.i'll put up pics when it is ready