The Active Thermal 00-120-04 Cool-cube E (replacing the original Cool-cube) was developed for the home theater design and installation community. Combining a compact power module with either 2-inch, 3-inch or 4-inch flexible tubing, Cool-cube E will pull heated air out of a closed mid-size cabinet, small closet, or enclosed video projector, holding a typical home theater system and quietly move it to a nearby closet, utility room, crawl space, etc. The power module measures 6" x 6" x 10" and is powerful enough to move a useful amount of air through tubing thin enough to snake through all but the most crowded cabinets.
The Cool-cube E features a new control system, activated by a remote temperature-sensing probe, with field-adjustable temperature set-points and speeds. In normal operation, the fans should run at low speed only; operation for significant periods at high speed may indicate that the Cool-cube is either underpowered for the amount of heat to be removed, or cannot breathe freely due to an intake opening that is too small. The noise level generated even at high speed is low (when used with the insulated 4" tubing) in keeping with the Active Thermal policy of not 'trading a heat problem for a noise problem'.
Cool-cube's power module is typically placed at the exhaust end of the tubing. A compact hot air collector, or flange, is provided at the suction end of the tubing, and is easily connected to a flat surface, such as the back of a cabinet.
Order the Cool-cube with 4" tubing if clearance allows, or with 3" or 2" tubing for those really tight situations. As little as 12 CFM of air movement means that the air in a typical 4' x 3' x 2' cabinet will be changed every two minutes. (This assumes free air flow; real-world installations will take somewhat longer for an air exchange).