[chongli]

Yeah I am a big fan of giant tank water heaters. You can even set them up to run at the time of day when energy costs are lowest, if you have variable pricing, and the hot water will stay hot for a day or two unless you use a lot. Often energy prices will be lowest on the weekend which works great if you time your laundry cycles on those days!

[bradknowles]

You can also get small tanked or tankless water heaters that fit under your kitchen cabinet, and can help provide that hot water to your dishwasher. Which is especially important if your hot water heater is located far away from the kitchen and it would take a long time for actual hot water to arrive at your sink.

I would recommend that you look at them closely and get the one that fits your use case the best.

CR can also help here, because they will test them independently of the dishwasher.