I have a piece of 4" steel pipe that I cut in half to form a arch.I place the pipe on the middle of the handle ,clamp one end at the tip ,put a wet all cotton rag at the handle area to cover a 12" centered,place tin foil losely over the cloth ,poke a couple of holes in the foil to watch for steam after heating with a gun and clamp the other tip in place.remove the foil and cloth and add dry heat until it's brown.I hold the heat gun 1/2" from the wood ,but never stop moving the gun in a sweeping motion.allow the wood to cool for a couple of hours.some may dissagree with my heat treating method ,but that's how I do it.
