Hello all, I tried searching for a similar post and have found some asking about firing but most have to do with kiln sitters or using a programmer. I just purchased an older test size kiln that I can't find any information on. It has a tag that says "PRO-CRAFT" but I can't find a serial or model number anywhere. It has a pyrometer that goes up to 2500F and a dial that looks like one from an old stove. It has OFF, LO, HI then numbers 2-6 with a midpoint mark between numbers and between the LO and 2, and 6 and HI. I have been trying to find information on how to use this to fire my pottery. The only peephole is maybe 1/2" and doesn't seem likely I'd be able to make out a cone through it, but I haven't tried yet. Later today I am hoping to test the kiln and see what temp each mark on the dial reaches and how long it takes to get there so I have some idea of how to get the kiln to reach the temperatures I want.
What I need to know is how long to fire for. Everything I'm finding refers to programmable kilns that don't make sense or 3 tier manual kilns that say something like 'put on low 2-3 hours, med 2-3, then high til the cone melts'. I've seen a couple posts suggesting to refer to older pottery books about firing, but they don't list names of the books and the searches I do are all coming up with recent texts. This is a very small kiln that I was told heats up VERY quickly which is why I plan to check how fast the temp moves when adjusting the dial because especially for bisque firing, I don't want to explode things.
Other things of note regarding the kiln, it is a front loader, the interior is 8.5"W x 5.5"H x 8"D. Best I can tell, the brick is 3" thick. The clay I have is cone 6 stoneware and I do have a few cone 6 glazes as well as some underglazes. Any assistance on how to go about firing with this kiln would be greatly appreciated!