Part 1 of 2 videos on Solar Power Diverters.
Part 1 Summary, Part 2 Diy build of my power diverter that's been running over the past year. https://www.youtube.com/watch?v=oum2e8KDpN4
Heating hot water for free or at least very close to free is one of the best way to save money. No matter how you heat your hotwater this video is worth watching. Best way to pay off your Solar PV System is to use as much of the power it produces.