A couple of local folk devised a wood fired water heater by tossing a coil of copper tubing into the bottom of their wood stove, attached to a barrel of water located higher than the stove. The water was supposed to circulate by convection. Worked okay until one of them tried to control the process by installing valves in the lines. Turned a sweet little convector into a steam bomb.
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Dance like you have never been hurt, work like no one is watching,love like you don't need the money.