Quote Originally Posted by jfk742 View Post
I’m going to go with kast o lite and then coat that with some itc 100 knock off (Metrikote IR reflective) that I found, for more efficiency, at least for the small forge, may be too difficult to keep the temp down for the larger heat treating forge if it’s as efficient as I’ve been reading.

Just to clarify, for the burners, I don’t need a flare on exhaust side because the forge will give me the same effect?
A guy in our club was saying that he buys Zirconium...something and an inexpensive clay from pottery supply places that works in place of the itc 100 at much lower cost. The cast-o -lite is good, but the forge will take longer to heat up. If you're cycling a bunch of steel through the forge the extra thermal mass of the refractory is a good thing. For shorter forge sessions it's not as good. The forge cantake the place of the flare.