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Posted by on July 24, 2008, 8:43 am
>
>
> > I'm having a new water heater installed soon. =A0I'm told my state (NJ)
> > requires a bonding cable be installed between the hot and cold water
> > lines.
>
> > I'm wondering if there is any benefit to also requesting a dielectric
> > fitting be installed intstead of standard copper fittings. =A0If a
> > bonding cable is used, does this make the the dielectric fitting
> > unnecessary if my goal is to prevent corrision at the connections?
> > Is there any benefit to also requesting the use of a dielectric
> > fitting?
>
> The bonding jumper is required so that the hot and cold water pipes are a=
t
> the same ground potential. =A0It does not have to be at the water heater,=
it's
> just that it's the easiest place for the inspector to find it. =A0Use at =
least
> a #6 copper wire, but I prefer #4.
>
> Dielectric fittings are used to help reduce corrosion of your water heate=
r.
>
> A plumbing permit is required to replace a water heater, but this can be
> applied for after the installation due to an emergency. =A0I've had a few
> customers tell me that when the gas water heater was replaced, the exhaus=
t
> vent had to be enlarged due to the higher BTU rating of the new gas water
> heater.
I've never used dielectrics on mine and have gotten normal life, ie 13
years or so, with no failures that were obviously attributable to the
connections.
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