• Squizzy@lemmy.world
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    1 year ago

    I’m confused, our as in European dishwashers are more efficient and environmentally friendly?

    But wouldn’t it be even more so if the hot water that was stored and not being used was the feed instead of cold water? That was the temperature increase is minimal and a lot more efficient.

    The eco wash is the best wash on my dishwasher.

    • Mr_Blott@lemmy.world
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      1 year ago

      The majority of our hot water is on-demand so no. Also, is it more efficient to heat the water, pump it through a potentially cold pipe, only to have to reheat it again? Nope,just heat it where you need it, and with a lower wattage heater

        • orrk@lemmy.world
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          1 year ago

          everyone, ever. unless you are running some industrial operations that require constant hot water, there is no reason for even a large family to be using water continuously, and hot at that

      • Rodeo@lemmy.ca
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        1 year ago

        Heating a volume of water a given number of degrees takes the same amount of energy regardless. Using a lower wattage heater is just going to make it take longer, not save any power.

        • Mr_Blott@lemmy.world
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          1 year ago

          So if you heat the water in a tank, pump it through a cold pipe to a dishwasher, then reheat it, you’re suggesting you’re using the same amount of energy as heating cold water directly in the dishwasher?

          No idea how Americans can’t understand that most of the developed world is decades ahead of them environmentally nowadays 😂

          • Rodeo@lemmy.ca
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            1 year ago

            I understand the difference, I was pointing out the wattage thing doesn’t really make sense.

          • Rivalarrival@lemmy.today
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            1 year ago

            Using gas to heat water is considerably cheaper than using resistive electric. Especially when the electric was historically provided by coal or gas anyway.

            Burning gas to heat water into steam to turn a turbine to turn a generator to pump electricity to a resistive element inside a dishwasher is not nearly as efficient as just burning the gas inside a water heater and sending it to the dishwasher. The heat losses incurred while passing the water from a gas heater to the dishwasher are a tiny fraction of the losses incurred in the convoluted processes involved in traditional electrical generation.