Fuel oil is a fraction obtained from petroleum distillation, either
as a distillate or a residue. Broadly speaking, fuel oil is any
liquid petroleum product that is burned in a furnace or boiler for
the generation of heat or used in an engine for the generation of
power, except oils having a flash point of approximately *0 °C (**4
°F) and oils burned in cotton or wool-wick burners.
