thermal fluid heater

The term thermal fluid heater as used in this part includes any fired automatic auxiliary heating unit which uses a natural or synthetic fluid in the liquid phase as the heat exchange medium and whose operating temperature and pressure do not exceed 204 C (400 F) and 225 psig, respectively. Thermal fluid heaters having operating temperatures and pressures higher than 204 C (400 F) and 225 psig, respectively, are inspected under subpart 61.05 - Tests and Inspections of Boilers.


46 CFR § 61.30-1

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