What is typically required for oil to be suitable for use in oil burners?

For oil to be suitable for use in oil burners, it is essential that it is a hydrocarbon oil. Hydrocarbon oils are derived from petroleum and consist of hydrogen and carbon atoms. They are specifically formulated for combustion and possess the appropriate properties necessary for efficient burning in oil burners.

Hydrocarbon oils, including furnace oil and various grades of heating oil, have the right viscosity, energy content, and burning characteristics that allow them to perform effectively in heating applications. These types of oils are designed to ignite easily at the temperatures generated in burners while also ensuring efficient combustion, which is critical for maintaining the longevity and performance of the heating system.

Flammable oils and those with flashpoints, while relevant, don't necessarily categorize a fuel as suitable for oil burners. Similarly, additives can enhance performance but are not a requirement for the base oil to be acceptable for burning. Therefore, the defining characteristic of suitable oil for oil burners is its classification as a hydrocarbon oil.