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

It’s one of the idyls of our age, to imagine oneself lounging in a hot tub watching a golden ... instead of a Scandinavian style wood fired tub in the forest we’re more likely to be thinking ...