4 ms·

I'm pretty sure your dishwasher has a fast program, I know mine does. Default is 3.5h, the fast program will only take 90 minutes, but of course use a fair amou

• andylynch 4y ago
  It's worth checking the manual - my IKEA dishwasher's fast program uses less energy and water, and 1/5 of the time (but is only good for lighter loads).
• NonNefarious 4y ago
  Which raises the question of whether using hot water from the water heater (at least as a starting point) would provide a net savings. It's not as if the dishwasher hoards very much water for a load.
  • maccard 4y ago
    _maybe_ but it's not a guarantee. You still need a heating element in the dishwasher as there's no guarantee that the hot water is actually at the correct temperature. If the supply is a hot water tank, the tank might not be full, and in an on demand system you might have cold water in the pipes. > It's not as if the dishwasher hoards very much water for a load. Apologies if I misread this but dishwashers absolutely _do_ hoard and reuse water. My dishwasher claims to use about 12l of water for a full wash, which really isn't much at all.
    • NonNefarious 4y ago
      No problem. My point was that they don't hoard MUCH water; the small amount they do hoard saves water over continuous flow. And also that using already-hot water gets it closer to the desired temperature at least, meaning less work for the heating element. If you're using a conventional water heater that's just pointlessly keeping your water hot all day, I figure you might as well use it. But of course, there's still a net loss of hot water that must be replaced using energy, so at best.... (you know what's coming)... It's a wash.