Being an A/C Tech I design duct and ventillation systems for a living. Whenever I can come up with the extra money (won't be long, few months maybe) I plan on building an enclosed grow room in the back part of the closet you see my girls growing in now in the pics I've put up. The Xtrasun reflector I'm using comes with the glass and other pieces needed to completely enclose the bulb inside the reflector (in fact it came that way and I had to take it apart) except for the built in 6" flanges on either end. I want to get a high cfm rated inline fan which I will install up in the attic to keep the noise outta the house and suck air from inside the house (all of the ducting will be in the attic) which stays at about 73 degrees blast it through the reflector then duct it back into the attic and let it dump the now warm air right back into another part of the house. The heat (as well as humidity) will then be dealt with and controlled by the central AC system. I also want to use a second, larger inline fan (also to be put in the attic, I want this to invade the inside of my home as lil as possible or at least my wife does LOL) to circulate the cool conditioned air from inside the house constantly through the grow room passing through a carbon filter before being dumped back into the house. I want to have something big going on while inside the home it seems as if nothing is going on. Those inline fans are expensive though!