Active Thermal Management (ATM), experts in quiet, thermal protection solutions, today announced Cool-Stack III˙, a 1-unit high, hot air exhaust system. With four (4) 120mm fans and an 18" depth, the Cool-Stack III has the power, and the reach to pull up to 70 CFM of hot air out of tightly packed racks while generating very low noise levels. Heated air is normally exhausted through the perforated front panel, but exhaust fittings and tubing provided with the unit can move the hot air safely away if the rack is located in a closet or cabinet. "Cool-stack III fits in nicely between our smaller Cool-Stack I and the larger Cool-Stack II, giving us a complete line of rack-mounted ventilating systems," said Frank Federman, ATM President. "It is a flexible, compact solution for the mid-size rack and heat load." Cool-Stack III is temperature-controlled, switching from a constant, very low "idle" speed, suitable for removing stand-by heat generated by components such as cable boxes and satellite receivers, to full speed as rack temperature changes. Internal movable jumpers are set during installation to satisfy the requirements of a particular installation, whether residential or commercial. Available in late August, Cool-Stack III has a suggested retail price of $450.00.