Dale Pappas stoking the salt chamber. This is one of the side stoking holes in the catenary arch, at the top of the kiln. Exhaust gasses from the Anagama chamber flow through the catenary arch, preheating it to 2200 F or more. As we quit stoking the Anagama, we move uphill to the salt chamber. It then takes two more hours to achive top temperature, about 2350. This was a way for us to increase the kiln's capacity, with minimal extra work.