On Sep 15, 6:01*pm, " wrote:
On Sep 14, 11:23 pm, ransley wrote:


...

obviously you have never replaced a scale covered electric heater
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The scale on an electric heater does not reduce efficiency. 100 BTU
in water gets 100 BTU In a gas you put 100 BTU (after taking all
factors other than scale into account) in you will get less as the
scale builds up.

That said, in almost all areas the cost of heating water is cheaper
with gas than electric even after accounting for scale.