What can I use as hearth material when installing a solid fuel stove? Multifuel and woodburning stoves create lots of heat which is transferred into the cast iron or steel they are constructed from to produce a radiant heat, this means the stoves body and all parts attached to it get extremely hot and will need to stand on a hearth which is constructed from a suitable non combustible material. The size of hearth required will be determined by the size of appliance which will