[IsaacCarlson]

and he built a heat exchanger for the hot water heater. It is an electric water heater and has two elements in it, on at top and one at bottom. The fittings are 3/4 inch pipe. He built a heat exchanger out of 3 inch steel pipe with a center tube of 1 inch pipe that goes in one END of the 3 inch pipe and comes out the other END. This inner pipe carries his hot boiler water mix. The 3 inch pipe has a tee on either end that connects to the water heater fittings and lets the water from water heater go in the side of the large pipe at the base and circulate around the 1 inch heated pipe inside and then exit near the top of the big pipe through the tee and return to hot water heater. it thermosyphons all the time. He heats his entire house and shop/garage with wood cut from his back yard(which is about 15 acres). I am trying to get him off the grid with wind because it is ALWAYS windy there.