Solder block from woodstoves

Solder block from woodstoves old ceramic honeycomb combustor

Do you think that a catalytic combustor from wood stove would be
good as a solder block to conduct heat. It is used and is of ceramic
honeycombed. Like to repurposed things that I have!. Thank you in
advance

if its ceramic or clay sounds ok…

That will work. It will be nice for bigger area soldering. The honey
comb will not be as much of a heat sink. You will probably lose some
solder in it. Those I believe have platinum in them like a catalytic
converter in a car but that will be OK too