Quote:
Originally Posted by oil pan 4
A natural gas heater wouldn't use any KwH and are usually at least 80% efficient.
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No, a gas water heater doesn't use any electricity - just $17.50 a month in natural gas. (At least that was my monthly average).
That is the equivalent of 115 kWh of electricity a month. Time will tell with the new water heater but the energy star label says 837 kWh per year or 70 kWh per month. I'm guessing I'll be closer to 650 - 700 kWh for the year.
80% or even 95% efficiency sounds good until you compare it to a heat pump at 250% to 300% efficiency.
EDIT: Again - care to share what problems you had with your old heat pump water heater?