Solar Powered Water Heater

[Bad Obsession]

That would work. You would just have to make an insulated water tank or buy one. I think that it is a pretty cool idea.

Package all the supplies together. It would be a seller!

 

[Ron20324]

How about using the heat element from a 12-volt coffee pot. You could solder it to a bucket...

 

[Doc_holiday]

You could use one of those dome solar pool heaters.

A shower would use a fairly low volume assuming you use a conservative shower head