An oil furnace is a heating system that uses oil as its primary fuel source to generate warmth for homes and buildings. It works by burning oil in a combustion chamber, which produces heat that is then distributed through ducts or pipes. This type of furnace is often chosen for its efficiency and ability to provide consistent heat, especially in colder climates. Oil furnaces require regular maintenance to ensure safe and efficient operation. This includes checking the oil tank, cleaning the burner, and inspecting the heat exchanger. Homeowners may also need to consider the availability of heating oil and the cost of fuel when using an oil furnace for their heating needs.