[ApprenticeMan]

Would this work? 1" thick inswool/kaowool coated with satanite refractory all around the inside, burner port at one end, with a fire brick in fornt of the flame to disperse/baffle the heat, with the blades never extending over the firebrick and flame itself. ID is 10 inches, would this be suitable for heating blades nice and even to the proper temperature? I would use just the PSI valve to control the heat with a thermocouple to measure how hot inside it is and control it from there. I know it wouldn't be as good as salts or an electric oven or kiln, a bit oxidysing, maybe a bit uneven heat but much more ideal than using just the forge.