Heating oil
Liquid petroleum product used as a fuel oil for furnaces or boilers
Liquid petroleum product used as a fuel oil for furnaces or boilers
Heating oil is any petroleum product or other oil used for heating; it is a fuel oil. Most commonly, it refers to low viscosity grades of fuel oil used for furnaces or boilers for home heating and in other buildings. Home heating oil is often abbreviated as HHO. Most heating oil products are chemically very similar to diesel fuel used as motor fuel; motor fuel is typically subject to higher fuel taxes. Many countries add fuel dyes to heating oil, allowing law enforcement to check if a driver is evading fuel taxes. Since 2002, Solvent Yellow 124 has been added as a "Euromarker" in the European Union; untaxed diesel is known as "red diesel" in the United Kingdom. Heating oil is commonly delivered by tank truck to residential, commercial, and municipal buildings and stored in above-ground storage tanks (ASTs) located in the basements, garages, or outside adjacent to the building. It is sometimes stored in underground storage tanks (USTs) but less often than ASTs. ASTs are used for smaller...
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