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i,m a dummy that just bought and installed a 38 gallon hot water heater
that is for a 240 volt hook up. the one i replaced is a 110 volt. how
can i fix this at the breaker box? the circut is a 15 amp breaker. thats
what i get for working 8 hrs. today and rushing over to home depot.
thanks, cj

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"cj" wrote in message
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i,m a dummy that just bought and installed a 38 gallon hot water heater
that is for a 240 volt hook up. the one i replaced is a 110 volt. how can
i fix this at the breaker box? the circut is a 15 amp breaker. thats what
i get for working 8 hrs. today and rushing over to home depot.
thanks, cj

You remove the single pole 15 amp breaker and replace it with a double pole
15 amp breaker. Install the black wire formerly on the single pole breaker
on one pole of the new breaker and remove the white wire of the same cable
from the neutral buss bar and connect it to the second pole of the double
pole breaker and voila... hot water: make sure the tank is full before
energizing


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"cj" wrote in message
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i,m a dummy that just bought and installed a 38 gallon hot water heater
that is for a 240 volt hook up. the one i replaced is a 110 volt. how can
i fix this at the breaker box? the circut is a 15 amp breaker. thats what
i get for working 8 hrs. today and rushing over to home depot.
thanks, cj


Unless your new water heater is a slow recovery unit with low wattage
heating elements it may not work with a 15 amp 220 volt circuit. Usually 40
gallon electric water heaters get a 30 amp 220 volt circuit. Check the
installation manual and the nameplate for the electrical requirements.
Otherwise do as RBM suggested.

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"John Grabowski" wrote in message
...

"cj" wrote in message
...
i,m a dummy that just bought and installed a 38 gallon hot water heater
that is for a 240 volt hook up. the one i replaced is a 110 volt. how can
i fix this at the breaker box? the circut is a 15 amp breaker. thats what
i get for working 8 hrs. today and rushing over to home depot.
thanks, cj


Unless your new water heater is a slow recovery unit with low wattage
heating elements it may not work with a 15 amp 220 volt circuit. Usually
40 gallon electric water heaters get a 30 amp 220 volt circuit. Check the
installation manual and the nameplate for the electrical requirements.
Otherwise do as RBM suggested.


Good looking out John, I just assumed he got one of the same wattage, but
probably not, especially from Depot, they most likely only have typical 4.5
KW units



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You remove the single pole 15 amp breaker and replace it with a double
pole 15 amp breaker. Install the black wire formerly on the single
pole breaker on one pole of the new breaker and remove the white wire
of the same cable from the neutral buss bar and connect it to the
second pole of the double pole breaker and voila... hot water: make
sure the tank is full before energizing


Ideally you would run another colored (non white, non green, black is ok,
red is better) wire as the 2nd hot but so long as a neutral is not required
reusing the white is acceptable (I think) but somewhat frowned upon.

It MUST be marked in some way. Color the part you can see red with a
Sharpie, paint, or wrap it with red tape. Anyone working on the wiring in
the future must be made aware that it's a hot wire.

If you have conduit and the run isn't too far or complex try snaking a new
wire through. If it's a run of non-metallic (plastic covered) cable
("Romex") and isn't too far or difficult then consider replacing it with a
new cable containing 4 wires (black, red, white, bare).

Reuse the white as a 2nd hot as a last resort.

Also, the above instructions about the breaker assume that you have a panel
where a double can be placed anywhere and automatically connect to both
sides of the line. That is usually the case but isn't always. On some
panels a 2 pole 240V breaker has to go in a different position.



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cj wrote:

i,m a dummy that just bought and installed a 38 gallon hot water heater
that is for a 240 volt hook up. the one i replaced is a 110 volt. how
can i fix this at the breaker box? the circut is a 15 amp breaker. thats
what i get for working 8 hrs. today and rushing over to home depot.
thanks, cj

got it taken care of
thanks for the input
cj

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On Mon, 14 Apr 2008 21:34:32 -0400, cj wrote:



cj wrote:

i,m a dummy that just bought and installed a 38 gallon hot water heater
that is for a 240 volt hook up. the one i replaced is a 110 volt. how
can i fix this at the breaker box? the circut is a 15 amp breaker. thats
what i get for working 8 hrs. today and rushing over to home depot.
thanks, cj

got it taken care of
thanks for the input
cj


Taken care of,.....,,, BUT, with what wire?
I'm real surprised no one mentioned the gauge of the wire. If you
went from a 15A breaker to most likely a 30A breaker, the old wire is
not likely heavy enough. The old wire is probably #14 or #12. For
30A you need a #10 wire (thicker). If it's a long way from the
breaker to the heater, I'd use a #8, but for 30 feet or less, #10
should be fine. If the old wire is #14 or #12, DO NOT leave it that
way. You could start a fire.



110 volt at 15 amps ?????
small tank ????


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