Kerosene is the standard heating oil for many UK oil boilers. HVO is a lower-carbon alternative, but compatibility, availability and cost need checking before any switch.

Key points

  • Do not switch fuel without checking appliance compatibility.
  • Kerosene remains the common fuel for many domestic oil systems.
  • HVO may reduce carbon impact but can cost more and be less available.
  • Tank, burner and manufacturer guidance matter.

What kerosene is

Kerosene is the fuel most domestic oil-heated homes are familiar with. It is widely available and supported by many existing boilers and oil-fired appliances.

Its main drawbacks are carbon impact and price volatility, both of which can matter to rural homeowners.

What HVO is

HVO stands for Hydrotreated Vegetable Oil. It is a renewable liquid fuel option that can offer lower lifecycle carbon emissions than fossil kerosene.

However, the practical question is whether the appliance, burner, tank, seals and supply chain are suitable for it.

Compatibility before conversion

Do not assume an oil boiler or range cooker can simply be filled with HVO. Check manufacturer guidance, burner setup, seals, tank condition and any conversion requirements.

A poor conversion can create reliability problems, warranty questions or unsafe running.

Cost and availability

Heating oil prices and HVO availability change over time, so this page should not be treated as a live price guide.

Before switching, compare delivered cost, supplier availability, appliance requirements and likely service support in your area.

Storage and servicing

Any liquid fuel system depends on sound storage. Tank condition, water contamination, filters and supply pipework remain important whatever fuel is used.

If you are considering HVO, plan it as a technical change rather than a casual top-up decision.

Common questions

Can I put HVO straight into my oil tank?

Not without checking compatibility. The appliance, burner, seals, tank and manufacturer guidance should be considered first.

Is HVO cheaper than kerosene?

It varies. Check current delivered prices locally because fuel pricing changes frequently.