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Oil tanks and supply pipes: what homeowners should consider

For an oil-fired heating system, the boiler is only part of the installation. The storage tank and fuel supply pipework also need to be suitable, properly located and maintained.

Why tank condition matters

OFTEC advises that domestic oil tanks should be visually checked by a competent person as part of the annual boiler service. Leaks can cause expensive damage and environmental contamination.

Tank siting and fire separation

Oil tanks need appropriate separation from buildings, openings, boundaries, flues and ignition risks. Where normal separation distances cannot be achieved, suitable fire-protection measures may be needed.

What is a bunded tank?

A bund provides secondary containment around the stored fuel. Depending on the location and pollution risk, bunding may be required or strongly recommended.

Do supply pipes matter?

Yes. The fuel pipeline between the tank and boiler must be appropriate for the installation and protected from damage. Tank and pipework should be considered together when planning a new oil-heating system.

Planning a replacement? A site assessment can consider the boiler, tank and supply pipeline as one system rather than treating each separately.

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