Steibel of Germany makes top of the line electric on-demand water heaters (and MRI machines). This is the Steibel Eltron Tempra 15 Plus Advanced Flow Control and retails for $749 + tax at Home Depot. When you get them, you have to have $250 fittings put on. These are included. That's $1000 that I've spent. The unit has never been used. It was installed for a studio but couldn't be used because I didn't have enough amps to run it. It requires 240 v , 60amp; 14.4 kw. Once installed, it will be a money & space saver. I may be able to deliver.