Designers & mfrs. of a wide variety of standard & custom electric process heaters including flanged immersion heaters, circulation heaters & screw plug immersion heaters. Specializing in heat transfer fluid heaters, hydraulic & lube oil heaters, instantaneous water heaters, fuel oil preheaters, chemical process heaters & air heaters. All types of terminal enclosures including high temperature designs. Element sheath materials available are steel, copper, stainless steel, incoloy & Inconel®. Many U.L. listed. Custom fabricated casings & assemblies with optional ASME certification & national board registration.