We have 230VAC (on all outlets) instead of your guys' puny 120V, so our dishwashers aren't handicapped out of the box and can heat their own water properly. I feel like having to run the tap before doing dishes is an L for the US, not Germany/Europe?

A lot of houses are older than the concept of central heating or running warm water, so there are some homes that don't have central warm water, but instead small heaters under the kitchen sink/next to the bathroom, which might or might not hook up to dishwashers