Fueling the Heat: The Different Types of Heating Oil in the UK Explained

For many homes and businesses in the UK, especially in rural areas, heating oil is an essential fuel. While most urban properties are connected to the mains gas network, nearly 1.5 million households across the UK rely on heating oil to stay warm, cook meals, and provide hot water. But not all heating oils are the same. Understanding the different types available can help you choose the most suitable, efficient, and cost-effective option for your property.

Lets break down the main types of heating oil used in the UK.

1. Kerosene The Standard for Homes

Kerosene, also known as 28-second oil, is the most commonly used type of heating oil for domestic purposes. It is a clear, thin fuel that burns cleanly, making it ideal for home heating systems such as oil-fired boilers and range cookers (like Agas and Rayburns).

Why its the top choice:

• Clean-burning with low soot and smoke emissions

• Works efficiently with modern condensing boilers

• Widely available and affordable

• Suitable for year-round use, even in colder weather

Most heating oil suppliers in the UK deliver kerosene in bulk, directly to on-site storage tanks. Its reliable, efficient, and generally cheaper than other heating oil types.

2. Premium Kerosene Boosted Performance

Premium kerosene is an enhanced version of standard kerosene that includes chemical additives to improve performance. These additives help to keep your heating system cleaner and running more efficiently.

Key benefits:

• Reduces carbon build-up in your boiler

• Improves system efficiency and fuel economy

• Lowers maintenance needs and extends system life

• Offers better resistance to freezing in cold weather

Though slightly more expensive than standard kerosene, premium kerosene can help lower your overall running costs in the long term. Its ideal for homeowners who want maximum efficiency and peace of mind.

3. Gas Oil For Commercial and Agricultural Use

Gas oil, also known as 35-second oil or red diesel, is a heavier fuel mainly used in commercial or agricultural heating systems. Its dyed red to distinguish it from road diesel due to different tax regulations.

Typical uses:

• Heating schools, factories, and large commercial buildings

• Fuel for agricultural machinery

• Suitable for older, industrial-grade boilers

Gas oil is not suitable for most modern domestic boilers, as it burns less cleanly and can lead to more residue build-up. However, for large-scale or industrial use, it remains a reliable and cost-effective option.

Which Heating Oil is Right for You?

The type of heating oil you choose should depend on your heating system, your property type, and your budget.

• Standard kerosene is best for most homes.

• Premium kerosene is worth considering for improved performance.

• Gas oil is suited to non-domestic, large-scale heating needs.

By understanding your options and choosing the right fuel, you can keep your property warm, your system efficient, and your heating bills under control no matter the weather.