I would like to install a wood-burning stove in front of an old
fireplace but the constructional hearth is not deep enough to provide
the required 300mm clearance in front of the stove.
would it be sufficient to build a superimposed hearth on top of the old
hearth and some of the (suspended) floor ?

if this is allowed/safe then I would ideally like a raised and tiled
hearth, so what material could be used to provide a strong and
heatproof structure under the tiles ?

Hope that made sense
Thanks in advance for any replies

Bob