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Re:Dishwasher Salmon by tjoff on Sunday April 16, 2023 @10:05AM (#35590139)
That is probably regional. Here cold they are most commonly connected to the cold water line.
Re:Dishwasher Salmon by orra on Sunday April 16, 2023 @10:20AM (#35590255)
Yup, pretty sure all UK/European dishwashers pull from the cold tap.

Modern energy efficient dishwashers only reach 50 °C. And they also take three or four hours, which makes this idea even less appetizing.

Re:Dishwasher Salmon by mattmaroon on Sunday April 16, 2023 @11:26AM (#35590769)
Y'all with your fancy 220v electricity can get it hot a lot faster. In America where your dishwasher can only pull 1,800 w you have to hook it up to hot water.

I believe most modern dishwashers simply sense the incoming water temp though and basically just pump the water through until they get to hot water.