PowerX makes water heating much more efficient. It is the Nest for water heating. It learns the water temperature you like and heats just as much water as is needed. PowerX saves an avg of $400/year and the CO2 emissions of what 10 fully grown trees can do!
This is a very dishonest company it decided to go in another direction it's not refunding customer money. Do not do any business with this company you cannot trust power x hanging out to dry!