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Kiln

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JoJoDapyro:
Maybe I'll try that. I don't know how high the pyrometers go that I have here at work. I'll have to take a look. The guy I got it from said it went to 1200 and 2000, but it doesn't seem like it gets to 1200. It also ramps up very slowly. I have a few buddies who are very good with electronics, and a few who went to school for it and should be, but I guess they like delivering Pizza more. I do all the soldering work for them whenever they need it.

Chippintuff:
I have no idea about rhyolite and the other tough rocks, but most chert and flint can be heated very well in a turkey roaster. Just 30-50 degrees too hot can explode most cherts and flints. I had an old kiln with an "infinite" control. I even turned some chert to sand using the lowest setting on it. My suggestion is to use only heat units that have accurate temp control via a thermocouple/thermostat.

WA

mullet:
Once I saw where the lid needed to be for coral and chert I started using my thermometer for BBQing. Most of them go to over 500dgs.

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