The best way to choose the heating element is to determine the amount of watt density it is needed. Heating elements are typically either nickel-based or iron-based.
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Did you know that “Nichrome” is the most popular heating elements with a melting of 1400°C.Â
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It doesn’t oxidize, doesn’t expand too much and has a reasonable resistance that only increases by about 10% between room temperature & max. operating temperature!