Multi-fuel stove

A 1922 advertisement from a Scottish stove manufacturer for a multifuel stove. This one burned anthracite and coke.

A multi-fuel stove is similar to a wood-burning stove in appearance and design. Multifuel refers to the capability of the stove to burn wood and also coal, wood pellets, or peat. Stoves that have a grate for the fire to burn on and a removable ash pan are generally considered multi-fuel stoves.[1] If the fire simply burns on a bed of ash, it is a wood-only fuelled appliance, and cannot be used for coal or peat.