"Andy Dingley" wrote in message
...
On Sep 8, 10:09 am, mike wrote:
I'm trying to remove an old tiled chipboard hearth.

Crowbar and bolster chisel in from the edges, and try to split the
chipboard through its (lower density) centre?

Now I will likely get shot down in flames for this..
But I bet an angle grinder would help, maybe create some channels and let
the bolster in.
Take the grinder down the line where the tiles are butted together?