Necessity is the Mother of Invention right?  I don’t know how necessary a floating hot tub is but it sure is inventive.  This is a wood fire heated hot tub that is built for cruising around on lakes, streams and rivers. It can be powered by a regular outboard or electric trolling motor. It’s called the Hot Tug and is built in Holland.  Lots of pictures and videos. Another fine example of the phrase, “you what a guy could do.”