There are a few natural buildings that stand out in my mind as some of the most beautiful examples. One of them is Meka’s cob cottage. Meka Bunch of Wolf Creek, Oregon built this stunning cob house over a four
Hot water tank heated by wood burning stove. From Teach Nollaig, Tiny house in Ireland. Could be improved by adding a small sterling engine to power a circulation pump, allowing the hot water tank to be up higher [improving pressure]. Also INSULATION!