Furnace oil, also known as fuel oil, is a dark, viscous residual fuel that is obtained as a by-product during the refining of crude oil. It is commonly used as a fuel in industrial boilers, furnaces, and heating systems.
Furnace oil is characterized by its high viscosity and relatively high energy content, making it suitable for applications requiring a significant amount of heat generation, such as in industrial processes, power generation, and heating large spaces.
Furnace oil is graded based on its viscosity and sulfur content, with different grades suited for specific applications. It is important to note that furnace oil is a non-renewable fossil fuel and, like other petroleum-based products,. Overall, furnace oil remains an essential energy source for various industrial and commercial applications.