I have seen them and I am thinking about making one for my travel trailer. I don't expect the water to get too hot. But then again this is Texas. Maybe the water wont get too hot during the winter? LOL!
I am planning on some long desolate trips. I am also looking some land that doesn't have any water, electric or sewer. The more I make the travel trailer rely on solar and gravity, the better.
I love my little travel trailer!
