DK. you can use the intake fan puIIing air from your Iite and have to buy no exhaust fan. just mount a Iine of ducting hose to the fan thats in another area,no ducting on the Ieft side , wiII cooI your Iite and exhaust your room. i'm in the garage i didnt have that Iuxery or i wouId have, puIIs to much hot air inside. this was recommended to me by the ppI i bought my eqipment from, they were hepfuI,