Tubular heaters are used for almost every kind of heating appliances. They are easy to form and feature highest mechanic stability and electric properties at the same time. Flexible tubular heaters have developed to be a new industry standard for the use in heating platens, welding bars and manifolds. Screw in tubular heaters are standardised for use in liquids like water. Finned tubular heaters are especially for air-heating-cabinets or tunnels. Important and useful characteristics of tubular heaters are that they can be formed into virtually any shape, brazed or welded to any metal surface, and cast into metals.