Electric Heater modifications


Old 01-23-12, 03:26 PM
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Join Date: Jun 2006
Location: USA
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Electric Heater modifications


I have a new 240V electric heater which comes with a 6ft. 3-wire cord. The sub panel in my garage has the nuetral and ground separate, therefore requiring a 4-wire cord. I have a 240V outlet (4-wire) installed in the garage. My question is can the electric heater be modified from a 3-wire cord to a 4-wire cord? What are my options?

Thanks for your help in advance,

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Old 01-23-12, 04:38 PM
pcboss's Avatar
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Join Date: Jul 2002
Location: Maryland
Posts: 14,595
You install a receptacle that matches the appliance. It does not matter to the appliance whether the panel is wired with 3 or 4 wires.

You heater is probably 240 with 2 hots and a grounding conductor. If so it does not need a neutral.

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