My grow room will be 5.59 ft long and 3.28 ft wide and 4.92 ft high. going to use a 400w hps. will I have heat Problems? and if s what sould I use to cool it down?
I have a similar cabinet, just a little smaller. In order to keep those doors closed, you are best to put an exhaust fan in one of the top corners( 120-150 cfm in line fan or squirrel cage). Then in the opposite bottom corner drill/cut an intake hole at least as big, if not twice as big as your exhaust. by doing this I am able to keep my temps under control. you may have to play with the intake size a little to get the temps where you want them. I started with 1 2" hole and added a cppl more, one at a time, until the cabinet cooled down enough.