A simple way to fill a tank with hot water without using electricity or gas. Just take some solid fuel, a Rocket Stove and copper tube coil.
Rocket stoves are one of the most efficient, clean and simple ways to get heat from burning wood. Many people now cook with rocket stoves and heat their houses with rocket mass heaters
Buy our book - OFF THE GRID - a tour of American off-grid places and people written by Nick Rosen, editor of the off-grid.net web site
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