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[–] 8 points 8 months ago (2 children)

doing the math, tankless heaters use insane amounts of electricity. we were gonna use one for a detached guest house so we could skip the insulated pipe, but holy shit the cabling we'd have to install

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  • [–] 4 points 8 months ago (2 children)

    Depending where you live, the tankless heater might run on gas.

    Which is sometimes better for the environment than the electricity, if the grid is coal powered.

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  • [–] 1 point 8 months ago* (1 child)

    i don't think those are approved for installation in buildings here. and i wouldn't want gas in my house anyway.

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  • [–] 2 points 8 months ago (1 child)

    Heating the same amount of water to the same temperature requires the same amount of energy.

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  • [–] 1 point 8 months ago (1 child)

    yes, but not the same amount of electricity. without a tank there's no heat storage to take energy from.

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  • [–] -1 points 8 months ago (1 child)

    And this energy, it came from... you rubbing your hands together? The tank will take more as the hot water sitting there is constantly cooling. It will take a system that can supply more instantaneous current, sure, like my humble cardboard shack doesn't have the electrical to really work well with a tankless heater.

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