These days, humans have gotten all fancy-schmancy with their gas and electric water heaters ... If you’re looking for a hot shower from your outdoor wood stove, a build like this might be ...

To heat the water, we used a wood-fired ... to wire the hot tub — a pile of dry firewood will do. You can go out and purchase a 60-foot roll of 3/4-in. copper tube and bend a heating coil ...