"I thought this was pretty ingenious.. several others on the same YT page...skip the ad in 3..2..1..." "This is an example of a compost heated shower, built by Geoff Lawton for the students of the Permaculture Research Institute's 10 week internship. The shower itself is a temporary setup while the student centre is being built but the water temperature is excellent and is almost too hot. It's been going for 3 weeks now without any sign of giving up and all completely free!"
In all these years of composting, why didn't I think of this? -LK