rewiring electric heater

Discussion in 'Electrical Forum discussion & Blog' started by handysoul, Nov 10, 2008.

  1. handysoul

    handysoul New Member

    Messages:
    3
    Hello,
    I have a small electric heater which is quite old but works great. However, the plug area from the wall for about 8 inches is now very hot. I want to replace the cord and have dismantled the unit, it looks pretty straight forward. What do you think is causing this heat in the cord to occur?

    Thanks
  2. PEW

    PEW DIY Senior Member

    Messages:
    487
    From use, the strands of the wire are most likely breaking where they attach to the plug, so less wire is trying to carry the current and over heating.

    If the cord is in good condition, it would be easy to cut a few inches back from the plug and attach a new plug. Just be sure to use one for the proper current, not a lamp plug.
  3. Billy_Bob

    Billy_Bob In the Trades

    Messages:
    422
    An old outlet can also cause this problem. Basically a poor connection causes heat.
  4. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    Get some cord of the proper rating, and a heavy duty plug...not one of the little lightweight gizmos. Also, consider the possibility that loose contacts on the recepetacle are contributing to this. Replace the receptacle with a contractor grade one.
  5. Billy_Bob

    Billy_Bob In the Trades

    Messages:
    422
    Here is the best type of plug to get. These have screw down connections (instead of wrapping the wire around the screw).

    [​IMG]
  6. Thatguy

    Thatguy Homeowner

    Messages:
    1,459
    Location:
    MD
    Yes, and shortens the life of motors.
    If the plug pulls out easily you should replace the receptacle.
    It's high contact impedance. There aren't many Internet links that deal with this subject.
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