Authority: IC 22-13-2-8
Affected: IC 22-15-6
Sec. 49.2.
"Thermal fluid heater" (also known as a hot oil heater or hot oil furnace) means a closed vessel in which a heat transfer other than water is heated by the direct application of heat from a thermal energy source, but no vaporization takes places within the vessel.
675 IAC 30-4-49.2