Oh yes, what's up with that anyway? I recently noticed laundry detergent companies making some magic "wash in 20 degrees Celsius" product, and heavily advertising it on the grounds of energy savings. I wonder how that works. I'm not sure my washing machine can even go as low as 20 degrees.

My US appliances have a tap cold setting, warms the water 0.

20F isn’t an uncommon water temperature for water coming from the city. Can even go a tad cooler in the winter.

Do you really mean "20F", or was that just a typo?

Because if you really do mean F, this tells me something I didn't already know about additives to the US water supply.

Maybe his supply is at 800 bar.

Makes sense - high pressure to minimize loss of heat in transmission. Like with high voltage lines. Though this would be like skipping the final transformer and feeding 40kV straight into your house wiring, which I don't think anyone does...

C lol