The Hot Thermic fluid is circulated in a closed circuit by means of a high temperature circulating pump. Effective combustion heats up the Thermic Fluid (up to 300’c) and then that heat is transferred to the process through an appropriate heat exchanger at user’s end. This system is adaptable to precise temperature control. A combined de-aerator cum expansion tank eliminates the gases liberated from the fluid during heating and absorbs the fluid’s expansion during the heating process.