I have planned for a long time to reuse my old gas water heater and make a solar batch heater with it. Now, I am not going to use this for house hold water. No, much simpler then that. I am going to use it to heat my kids small swimming pool. So far I have spent $10 in fittings. I plan on spending maybe $5 more on black paint. Then I am done.

Here is a picture of the bare tank sitting on the back patio. I still have to sand off the foam bits and paint it.

I guess if I was crazy enough I could set it on some bricks and light a fire under it. It was a gas-fired water heater.