Classification Information
Electrical heaters and heating systems for industrial and commercial use, namely, electric pipe and pipeline heaters, electric trace heaters, electric roof and gutter deicing heating systems, electric embedded snow and ice melting heating systems, electric floor heating systems, electric frost heave prevention systems, electric tank heaters, immersion heaters, enclosure heaters, bolt heaters, flexible heaters, refrigeration defrost heaters, finned tubular heaters, open coil heaters, circulation heaters, circulation heaters, fluid heaters, and accessories related thereto
Environmental Control Apparatus