Manufacturers Representative and Distributor of Process Heating Equipment and Controls. Established in 1978, Applied Thermal Systems is a leading Manufacturers Representative specializing in the areas of Industrial Heating and Process Control. Applied Thermal’s experienced and highly trained Sales Engineers provide quality, technical solutions that meet or exceed our customers' requirements. Our top notch Customer Service Reps insure the right product is delivered at the right time. Long-term relationships and value-added service are the standards for both our Customers and the Manufacturers we represent.