Welcome to Thermal-Flex Systems

Thermal-Flex Systems, Inc. specializes in manufacturing a broad range of electric heating systems, components and controls for railroad and transit switch heating and industrial heat tracing applications. Our innovative product designs include the only flexible rail heating element in the industry, low profile, lightweight ballast heaters, and specialty heating products.

Our products are used throughout the world by railroads, transit companies, major power facilities, engineering and construction firms, steel mills, the U.S. Navy and many other manufacturing and service companies.

Our Specialization

Switch Heating Systems and Controls
Industrial Heating Cable

Early Railroad Experience

The first Thermal-Flex Switch Heating System was installed in 1976 on a 30 foot spring switch for the main line of the Central Vermont Railway at White River Junction, Vermont.  This early design was later improved upon with the addition of two crib heaters in the switch rod area.

Further product development and system enhancements have resulted in the switch heating systems we offer today.  Thermal-Flex products are in use throughout North America and Europe under a diverse range of climatic and operating conditions.

Stainless Steel Crib Heater
Switch Heating System with Single Crib Heater