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-   -   What size wire for 30 amp 240 volt electric heater (https://www.askmehelpdesk.com/showthread.php?t=421121)

  • Dec 1, 2009, 02:31 PM
    mandan86
    What size wire for 30 amp 240 volt electric heater
    What size wire should I use for a 30 amp 240 volt electric heater for my guarge?
  • Dec 1, 2009, 03:10 PM
    stanfortyman

    If the draw is 30A then you need #8cu wire on a 40A breaker.

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