Need help

Hey there,
i've got a 400-watt bulb set without any cooling and im looking to build a little grow room, more in the likes of a closet. need some help designing the air flow and the climate control.
im afraid it will get 2 hot with the hps and the closet closed...
thanks!

It will get HOooT


Cool tube is veryy smart idea!

Closets work well with a 400w. I've got one going now for a temporary veg area. I cut a hole in the ceiling to exhaust the hot/humid air into the attic, put some ducting through the hole and hooked up a 6" Vortex exhaust fan on a speed controller (set on a low speed, nice and quiet). Then you need some type of passive intake down low. I cut a hole in the door and put in a dark room louver. Works great. Use a little weather stripping if you want to light proof the door.

It took a little guts to cut the hole through the door..

Thanks guys. my bulb set isn't supporting a cool tube so I guess ill have to go on the 2nd suggestion.
Thanks!

You're welcome