Both PEX and copper are good options; however, both have some advantages and disadvantages as well. PEX is less expensive, and fast to install, while copper is more expensive and can burst in cold weather. Need Live Phone Leads?
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!