Quote:
Originally Posted by JSH
Likely that when they replaced the electrical panel they sized it for future expansion and put in a hot water tank large enough for a 3 bedroom house (and the extra people that come with it)
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perhaps differently: they needed an additional circuit for the water heater because the current one is only 30 amps and that Rheem probably wants 50. Since the current box probably only had room for the 30, they had to install either a sub box like oilpan4, or took the easy homedepot way out and hung a bigger box. The guy next door spent $125,000 rewiring the 70 year old brick house so I'm guessing these people didn't go that far, but you never know.
I myself still wouldn't touch this with a ten foot pole.