Some domestic boilers run on Gas Oil, which is a slightly heavier fuel oil than Kerosene but does have a higher calorific value, giving up to 12% more heat per unit.
For heating applications, this fuel is called Gas Oil. It is sometimes called ‘35 second oil’, ‘cherry fuel’ or ‘tractor fuel’, but more commonly ‘Red Diesel’ because of the colouring that indicates users are benefitting from reduced tax duty compared to normal automotive Diesel. Gas Oil can be found in many applications, but is more commonly used for non-domestic purposes.
This fuel is termed 'Red Diesel' from the colour of a dye added before resale to distinguish it from normal Diesel as an aid to investigating authorities.
This oil has the same calorific properties as regular 'white' Diesel, but it must be used only as Gas Oil when powering oil-fired boilers or Red Diesel in exempt vehicles. Use as an everyday road transport fuel is prohibited by law - full details of allowed usage are available on the HMRC website, here. If you are unsure whether you are allowed to use Gas Oil, you can always call our Customer Service line - 0800 500 3178.
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Domestic Customers can order any quantity of oil for a reduced rate of 5% VAT. You may be asked to sign a statement confirming that you are a domestic customer.
Commercial Customers can order quanities of oil under 2,300 litres for a reduced VAT rate of 5%, but for any order over 2,300 litres they are subject to 20% VAT.