For setting a fire or ash door you would normally use a factory mixed refractory cement (fiber reinforced sodium silicate - based fireclay) that would withstand 2000°F + heat. This is the same mortar you would use to set and line the firebricks or repair cracks in a masonry fireplace. It comes as a dry mix or a ready-to-use mix.
Rutland (
Repair or reset furnaces, wood or coal stoves and fireplaces
18 month limited manufacturer's warranty </q> read more and respond »Posted 3 years ago by homeowners in Concrete
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