It takes a few minutes for my tankless water heater to warm up, so we end up wasting a lot of water in our shower. Is there a way to avoid this? A friend mentioned a “comfort valve” or something? What is it and how does it work? Or is there another solution? Thx!

  • KittenBiscuits@lemm.ee
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    1 year ago

    um, the goal is to get the heater going by drawing on the hot supply, right? I’ve only ever seen cold supply hooked up to a toilet. So emptying and refilling the toilet tank doesn’t use up the cooled water in the hot supply line. However, catching cooler shower water in a bucket and using this to manually flush the toilet doesn’t waste the water. It is a lot of effort though.

    • SheeEttin
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      1 year ago

      turn on the shower before you use the toilet

      It’s not actually about the toilet, it’s about turning on the shower earlier.