Heating oil is one of the most popular forms of heating for homes that do not have access to the main gas grid. As such, it is usually used in properties that are located in rural or remote areas, where other forms of heating are not readily available.
Instead of being delivered through pipes, heating oil is delivered by an oil supplier and stored in a heating oil tank, which is usually located outside. It tends to be relatively inexpensive compared to other alternative fuel sources (e.g. LPG or electricity), which makes it a popular choice among many families in the UK.