I was gifted an old DHC kiln. I don't have any experience with older kilns like this and I can't find a user manual at all for it. There are 2 switches on the side which I'm assuming is one for each heating element because there's no temperature setting at all for it. Does anyone know anything about what the settings are for each switch or have any other information on this type of kiln? I've asked a few of my friends that are more versed with kilns than I am and we're all pretty stumped at this point.