I'd like to build one of Matt Walker's
Tiny House Cook Stove and Heater designs.
With a bit of help from a fellow member, I've managed to source ceramic fiber board with a temperature tolerance of 1260 C, which I think translates to 2300 F. But I noticed that in the Builder's Guide it says that surface temperatures within the riser can be 2500°F.
Do I need to keep looking?