Please note: All interim revisions for this edition available at time of your purchase will be included.

Electric Oil Heaters

UL 574

1 Scope

1.1 These requirements cover electric oil heaters for use with Nos. 5 and 6 fuel oil as defined in Specifications for Fuel Oils, ASTM D396, or other oils such as heat tranfer oils. Electric oil heaters are to be used in ordinary locations and installed in accordance with the National Electrical Code, NFPA 70.

1.1 revised August 14, 2003

1.2 These requirements do not cover electric oil heaters rated at more than 600 volts.