Where should my heating oil tank be located?

Assuming compliance with building regulations, oil tanks can be installed outdoors, indoors or underground.

Most householders install their oil tank outdoors, where it is easy to maintain. To reduce the risk of being targeted by thieves, you should place your tank where it is out of sight of the road but visible from inside your home. We also recommend installing flood lighting around the area your tank is located. 

Installing your oil tank indoors helps protect it from damage and theft. Plus, the higher temperature boosts burning efficiency and reduces the risk of freezing. You can install your tank indoors if:

  • The tank capacity is 3,500 litres or less.
  • There tank has secondary containment.
  • The tank alone is within a one-hour fire-resistant chamber.
  • The tank is located at the lowest possible level.
  • There is ventilation to the outside.

Installing an oil tank underground saves space, but it also makes it harder to maintain. You can install an oil tank underground if:

  • The tank is specifically constructed for underground use.
  • Recommendations in the Environment Agency’s Pollution Prevention Guidance note PPG 27 are followed.
  • Any necessary planning permission is obtained.