A wood burning stove is specifically designed to burn wood in the most efficient way with the combustion air coming from above the firebed, so it burns from the top down. It have a fixed grate, with no ashpan as wood burns best on a bed of ashes. A multi-fuel stove on the other hand burns the fuel from the bottom up. These fuels can be either wood, anthracite, smokeless fuels or briquettes. It has a raised grade and a removable ashpan to collect ashes.