[amiga386]

I'm in the UK and have a dishwasher connected to the hot water right now. There is not some country-wide uniform "we".

The manual makes clear this is quite OK.

They work with either hot or cold water. They will heat the water to the temperature they need. They don't work with _too hot_ water, hotter than they would heat it themselves (e.g. >60°C), but that's also outside the range of most domestic hot water supplies (which per BS 8558 should have a draw-off temperature of 50°C at sinks).

As a quick sample, here's the Argos dishwashers page: https://www.argos.co.uk/browse/appliances/dishwashers/c:2961...

Pick any dishwasher at random, go to Specifications -> General -> Water fill. Every single one I picked, all from different manufacturers, said "cold or hot"

Looking at one random choice's data sheet: https://documents.4rgos.it/v1/static/3425118_R_D010

> Maximum temperature for water intake (°C) 60

[nemetroid]

I wasn't able to find manufacturer recommendations from Argos, but I did find two Swedish manufacturers that support either hot or cold water, but recommend that you use the cold water line. One of them claims that detergents are designed to work better when starting with cold water (presumably this is not the case in the US, where hot-water-only machines are the norm).

> Connect the machine to cold water if possible. Then the dishwasher itself heats up the water during the washing phase and the final rinse, which means that you save about 20 percent of energy. Today's dishwasher detergent works best and tablets dissolve better when the program starts with cold water.

> Dishwashers connected to cold water use around 30 percent less energy than dishwashers connected to hot water. A dishwasher connected to cold water only uses hot water when it is really needed.

https://www.cylinda.se/produktguide/kok/diskmaskiner

https://www.electroluxhome.se/vitvaror/diskmaskin/inspiratio...