We use a wood stove for heating. We live in the West Kootenays and firewood is around 225-250/cord. I bought a John Woods range boiler that failed and had to buy another one, no warranty. We put a copper coil on the wood stove and the range boiler is elevated so the hot water is circulating. It work ok but it did not circulate through the hot water tank. When we burn firewood 24/7 we often got enough hot water but not always. A couple of years ago I bought 2 flat plate solar panel and a solar hot water tank from China. The tank had a separate intake outtake so the water from the range boiler circulated inside tank. After burning firewood 24/7 for a couple of weeks we could turn of HWT off for the winter until we burned only at night. We are in that heat dome and are getting so much hot water, sometimes the water in the tank reaches 80 C. I'm watching it now and will run the hot water in the afternoon to cool it down. Too much hot water, I'm amazed.
