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Get a two pole breaker for your panel and terminate the two wires you are using for Hots to the breaker, be sure you have a ground wire from the ground bar or combined neutral and ground bar in your panel that goes to the housing (box or water heater makeup box) at the load end of this branch circuit. Ground the ground wire from the panel to the box or housing it comes out into at the load end. Remember, bare (means unprotected here) wire is for bozos, NM cables (romex type) are not meant or listed for exposed work (means must be inside wall, under floor, or above hard ceilings) If you run from a box on the (wall,floor etc.) to the water heater through flexible conduit, you must take the ground through the flex and be grounded at both ends of the flex (box and housing) DO NOT depend on metal flex conduit for a ground. Do not use a pipe or any other earth ground that is not grounded /bonded to your panel ground bar as a ground. Make sure your ground at the panel is grounded to earth (ground rod) properly. I'm not from Alaska but it seems to me that here might be local rules there applying to grounding and bonding methods that are different/supplemental than places(like here in Calif.) where there is no permafrost or phenomena like frost heaving (seems like that could disturb a ground?) Grounding a water heater properly is abolutely necessary and crucial for your safety's sake.
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Originally Posted by Badcatt
