Burn only seasoned timber with a moisture content of less than 20%. To ensure this allow cut wood to dry for 12 to 18 months. DO NOT BURN construction timber, painted, impregnated / treated wood, manufactured board products or pallet wood. Choosing fuel: All types of wood can be used as fuel in a log burner or multifuel stove. Different types of wood have different densities: the greater the density of the wood the greater the energy value. Oak, beech and birch have the highest value. If wood is too wet, it will be difficult to light, struggle to burn, give very little heat output and tar up the flue. This could lead to a chimney fire, so it is important to burn sufficiently dried firewood.
Multifuel stoves can also burn anthracite or manufactured briquette smokeless fuels listed as suitable for use with closed heating appliances. Do not burn bituminous coal, ‘petro-coke’ or other petroleum-based fuels.