My wife is buying a kiln for her glass work. The specs are 240 V, 27.8 Amps single phase. The manufacture recommends 8 gauge wire with a 40 amp breaker. We haven't been able to get our electrician over to give our garage an overhaul (we want to put in a sub-panel and I'm going to have a few 220 circuits put in for future ww tools). Anyway, since we don't have the wiring yet, and my wife will be very anxious to play with her new electron killer, I was hoping to use the clothes drier circuit. It is currently on a 30 Amp breaker, but I don't know what gauge the wire is. Could I expect the wiring to already be 8 gauge? Or is there an easy way to check (wiring is in the drywall)? Also, the current breaker for the dryer is actually one switch(?) of two adjacent breakers connected with a little bar. If the wiring is okay (8 gauge) could I just buy two new breakers with 40 amp switches and connect them?
Thanks,
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