Woodsure Explained The official body recognised by government for setting standards for wood fuel is Woodsure. Woodsure is the UK’s only woodfuel quality assurance scheme. Here we explain about how it works. The official body recognised by government for setting standards for wood fuel is Woodsure. Woodsure is the UK’s only woodfuel quality assurance scheme. It certifies suppliers for reliable, high-quality wood fuels. Woodsure supports 2 schemes: Woodsure – assured quality fuel Applies typically to logs which are air-dried to a maximum moisture content of 25%. The scheme ensures that suppliers have a robust quality assurance scheme in place to deliver consistent high quality firewood from sustainable sources and delivered in consistent measurable volumes. Woodsure – Ready to Burn Applies typically to logs which are kiln-dried to a maximum moisture content of 20%. Fuel with a moisture content less than 20% is recommended for modern high performance stoves and generates significantly fewer emissions than burning woodfuel of a higher moisture content (up to 80% less than burning wet wood on an open fire!!). With the current emphasis on poor air quality, particularly in urban environments, it always pays to burn woodfuel with a moisture content between 8% and 20%.