[HowToLou] got back to basics instead, with his simple wood-fired water heater design ... for a hot shower from your outdoor wood stove, a build like this might be just the ticket.

For a relatively small price, you can build this hot tub in your backyard ... if you go with a ridge free tub. To heat the water, we used a wood-fired thermosyphon heat exchanger.

Energy-efficiency and clean energy projects like insulation, solar, and heat pumps can bring you thousands in federal and ...