krj wrote:
chuck wrote:
Larry wrote:

wrote in news:1150426885.033779.258180
@g10g2000cwb.googlegroups.com:

If the water heater is not
bonded to the engine ground you get zapped!


(click!) The GFCI just trips. Noone gets zapped.

Another case to make dock GFCIs MANDATORY at all marinas.


If the water heater is on a 250/125 volt circuit there can be no GFCI.

Do you see a lot of water heaters operating at 125 volts?

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There are a lot of 6 to 12 gallon hot 125 volt water heaters on sailboats.
krj

Thanks for the info, krj. I didn't
realize they were so common.

But it is worth noting that if that 125
volt water heater is powered from a 250
volt shore power connection, there will
be no GFCI protection at the pedestal
for that circuit.

Of course, one could (and should)
install his own GFCI protection for a
125 volt water heater onboard, even when
powering from a 250 volt connection.

Chuck

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