>Any supplemental heat they need, that is not provided by the sun, is provided by a wood-burning stove. Such green, much modern, wow! Edit: Hm, others in the

>Any supplemental heat they need, that is not provided by the sun, is provided by a wood-burning stove. Such green, much modern, wow! Edit: Hm, others in the thread have pointed out one could use a gasification burner