Wood burning or Multi Fuel

Q: What is the difference between wood burning and multi fuel?

A: Logs burns best on a flat bed of ash, with air for combustion coming from above. Coal and smokeless fuels burn best on a grate, with air entering from beneath the fire and cinders dropping into an ashpan below.

Wood burning models, therefore, have flat fuel beds whilst multi fuel models incorporate grates, but the latter are also designed to allow you to develop a bed of ash upon which to burn logs should you wish.