Hi green fingaz, my box is 2x3x5.5 feet tall. I just have a 160 cfm duct fan taking air from the box, through the cool tube, and out the back of the box. I also have a small hole with a fan at the top of the box blowing air out the back too... the only intake is a vent at the bottom. Stealth isnt too big of an issue for me so they both just blow into my livingroom.