Re: water tank heater watage

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Posted by Jack - Iowa on January 01, 2018 at 07:49:15 [URL] [DELETE] :

In Reply to: Re: water tank heater watage posted by Larryb on December 31, 2017 at 22:48:21:

According to the wire tables, 14 Ga. Copper has a resistance of 2.58 ohms per 1000 ft.

Two,100 ft.14 gauge copper conductors would be .516 ohms. At the 12.5 amp draw of your heater that would result in a voltage loss of approximately 6.45 volts or 5.38%.

For your distance 14 gauge would be fine.

For the permanent wiring I also would use 12 gauge.


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