but generally it would be better to have double the intake as exhaust
and another good thing is to exchange the air in the cab at least twice a min
texas grass Reviewed by texas grass on . Lowering temps in cab.. couple questions! Ok guys, I have a cab 34"(h)x24"(w)x15"(d). Temps are getting up to 90-95 in my cab with the door closed. I have an oscillating fan inside the cab for airflow. The outside room temperature stays around 70-72. Right now I have 2 - 3" Dynex comp fans (80mm / 34 cfm) running as the exhaust out the top backside of the cab placed side by side, and a passive intake at the bottom which is slightly smaller. I've tried a couple diff. setups; using one fan as exhaust and the other as active intake, Rating: 5