I am wiring a receptacle for a 4800 watt (220) construction heater ( the standard type found in home stores). Do I need a neutral wire or not? Do I use 10 awg wire 10/3 or 10/2.

  • What's the model number of the heater? I'd have to guess that it's a 240 volt heater, but without knowing the exact model there's no way to know for sure. – Tester101 Aug 12 '16 at 19:54

Your load is 20 amps so you should use 10 awg. Heaters are continuous loads, to size the wire correctly it is 125% of 20 amps or 25 amps. The fans usually run on 120v and they would require a neutral 10-3 with ground would be the proper wire.

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