Yup electric waterheaters cost far more to operate than the general public realizes. Usually you can assume it costs about $50 a month to operate for a typical household.
We will be going with a heatpump waterheater when I move the waterheater during the remodel. Use less electricity, cool and dehumidify the air yes please...
As for the anode rod. If your water eats it away quickly most likely you won't have much of it left and it will just come right out. If there is any left it'll probably be thin enough to just bend. If it's bigger than that then it probably doesn't need to be replaced yet.
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