I'm thinking about getting one of these for my water heater. Basically makes a tank water heater an on demand water heater. What do you think?
https://www.indiegogo.com/projects/gecco-save-money-by-automating-your-water-heater/x/10476350
https://www.indiegogo.com/projects/gecco-save-money-by-automating-your-water-heater/x/10476350