Hot water from wood heat ideas

[BobUp]

5. Second photo

looks like an old water tank from a water well system. I bought one of those made into a wood burner years ago from my wifey's uncle, and I installed it using triple wall stainless steel vent pipe.

To take this a step further, one could have welded brackets to the top and placed another water tank with pressurized water in and hot water out, not only would one have hot water, but the heat retention of the water would keep heating the structure long after the fire in the lower stove went out.

I've seen double barrel stoves too, made out of 55 gallon barrels.