The standards on residential water heater efficiency, which are required by Congress, have not been updated in 13 years. Water heating is responsible for roughly 13% of both annual residential energy use and consumer utility costs, the DOE said.

  • kitonthenet
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    61 year ago

    Tankless water heater maker Rinnai

    were “technologically impossible”

    impossible for a tankless heater maybe, but Jesus the amount of power those things draw

    • @tinkeringidiot
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      81 year ago

      When it’s on. When you aren’t using it, it draws zero. I’ve had a tankless electric for 8 years, and my power usage hasn’t changed much either up or down.

        • @tinkeringidiot
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          11 year ago

          I doubt the energy savings would cover the cost difference in my case, and even if it did it’s worth a little extra to never run out of hot water.

          I’ll stick with the tankless.

          • kitonthenet
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            11 year ago

            its somewhere like 3x more efficient, and for environmental standards, I’m sorry but your personal preference shouldn’t really matter. 3x is 3x

            • @schroedingershat
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              21 year ago

              Storage water heaters can also capture off peak or curtailed energy (acting as 6-12kWh of diurnal storage), so they are more than 3x better in terms of emissions.