A heavy petroleum distillate ranging from #1 (kerosene or range oil), #2 (diesel fuel), up through #6 (heavy bunker fuels). To be identified as fuel oil, a sample must exhibit a homologous series of normal alkanes ranging from C9 upward.
Refined petroleum products used as a fuel for home heating and industrial and utility boilers. Fuel oil is divided into two broad categories, distillate fuel oil, also known as No. 2 fuel, gasoil, or diesel fuel; and residual fuel oil, also known as No. 6 fuel, or outside the United States, just as fuel oil. No. 2 fuel is a light oil used for home heating, in compression ignition engines, and in light industrial applications. No. 6 oil is a heavy fuel used in large commercial, industrial, and electric utility boilers.
A liquid fuel composed of a mixture of medium-sized or heavy hydrocarbons and produced by refining crude oil. Lighter varieties of fuel oil include diesel fuel, home-heating oil, kerosene, and jet fuel, while heavier fuel oils are used by industries, ships, and electric power plants to generate heat and power.
Kerosene or any hydrocarbon oil as specified by U.S. Department of Commerce Commercial Standard CS1 2 or ASTM D296, or the Canadian Government Specification Board, 3-GP-28, and having a flash point not less than 1000F (380C1.
A refinery product having different meanings according to refinery or locale. Usually fuel oil Numbers 1 and 2 is diesel fuel or kerosene whereas fuel oil Numbers 4, 5, 6 or 7 is furnace oil or fuel not suitable for a motor vehicle.
Any liquid petroleum product burned for the generation of heat in a furnace or firebox, or for the generation of power in an engine. Domestic (residential) heating fuels are classed as Nos. 1, 2, 3; Industrial fuels as Nos. 4, 5, and 6.
No. 1, No. 2, or No. 4 grade fuel oil or residual oil that is burned for space- or water-heating purposes. No. 1 distillate fuel oil is used mostly as a blending stock to assure that heavier grades of fuel flow under severe cold weather conditions. No. 2 fuel oil is the most common form of heating oil. No. 2 distillate collectively refers to No. 2 heating oil and No. 2 diesel fuel. Although these products are not precisely identical, they are essentially interchangeable in most applications. No. 4 distillate is a blend of No. 2 and No. 5 or No. 6 residual fuel oil, used in large, stationary diesel engines and boilers equipped with fuel preheating equipment. (See Fuel.)
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 40 Â°C (104 Â°F) and oils burned in cotton or wool-wick burners. In this sense, diesel is a type of fuel oil.