Ceramic igniter are PTC ceramic elements: PTC ceramic materials are named for their positive thermal coefficient of resistance (i.e., resistance increases upon heating). That mean that they have a highly nonlinear thermal response, so that above a composition-dependent threshold temperature their re......
Read MoreHot surface igniters are a resistance element made of silicon carbide or silicon nitride. Anywhere from 80 to 240 volts are applied to the wires attached to the igniter. A ceramic base insulates the wire connection to the carbide element which looks like the letter M on most applications. Spirals ......
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