the_bosun_mate
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I am installing a Dimplex EWA40c31 4000w/240v Surface mount electrical heater. In my service box I have a empty double 20amp circut breaker. Can I use the double 20AMP service breaker or do I have to upgrade to a double 30AMP breaker. The basic electricity book (its old) that I have, says that you can use 20AMPS up to 4800W??? also plan on using #10 wire any problems??