Learn how to build a water heater by using a wheelie compost bin setup and the heat generated by the creation of compost.
http://www.thegoodsurvivalist.com/how-to-get-free-hot-water-from-compost-wheelie-bin/
This is a companion discussion topic for the original entry at https://peakprosperity.com/how-to-get-free-hot-water/