Hybrid Car – More Fun with Less Gas

Re: Power cost of idle electric water heater -- and a gas one

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Posted by daestrom on April 2, 2004, 3:49 pm

Certainly possible.  If the unit is gas-fired, then the only thing you have
to worry about is the acidic condensate that would form.  That's why
condensing furnaces have stainless-steel heat exchangers and water
collection designs.

Although I have looked for them, I haven't found any condensing hot-water
heaters for residential use.  Not sure the amount of money spent on gas
water heating can pay for the extra costs within a hot-water heater's


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