Electrical resistor specialist Mosebach Mfg. Co. offers the HotBox, a powerful, portable industrial heater capable of delivering up to 147,000 Btus. The HotBox's advanced electric heating element generates powerful heat, which is spread throughout a space quickly by a high velocity centrifugal blower. Made of rugged, fire-resistant plastic, the HotBox is 20% lighter and 40% smaller than conventional heavy-duty electric heaters and has none of the fumes, carbon monoxide risk, and refueling hassles of kerosene- or propane-fueled heaters. A retractable handle and rubber wheels allow for easy positioning where heat is needed most. The unit cools quickly and can be stacked for storage. Mosebach Mfg. Co.