Bests & Worsts Reviews from Amazon

This is exactly what I wanted to eliminate my gas-fired tank water heater. I have solar power, so it makes no sense to burn gas when I am generating my own electricity. The unit is light and easily mounted on a wall. However, the rest of the installation requires qualified tradespeople. Installation was $1600 but they did everything in 1 day. A couple of details: 1. Buy the two valves shown. Your plumber will have them but they will be cheaper if you buy them from Amazon. Also get the 3M decalcification unit. Can't hurt. 2. At first the controller wouldn't work and that was because the circuit board on the unit door was not seated quite right. Just giving it some gentle pressure had it snap into place.