One of the more unusual buildings taking part in the UK wide HVO trials is the first church in the country to run on the new renewable liquid fuel.
The installation came about after Stithians Methodist Church near Truro, Cornwall put out a call on its local radio station for ideas to make the building more environmentally friendly.
South West heating oil supplier Mitchell & Webber quickly responded and a few days later, the historic building was using the fossil free fuel.
Dating back to 1865, the church would have proved unsuitable for alternative low carbon heating solutions such as a heat pump without extensive and expensive insulation measures that would ruin the structure and character of the Victorian building.
The Church Committee is delighted with the simple, inexpensive switch to HVO and hopes other places of worship will follow its lead once the fuel becomes more widely available.
Take a look at this video to see HVO in action.