Webpage, schematics http://bristolwatch.com/solar2.htm.
If you are interested in joining the green movement and helping the Earth, harnessing power from the sun is the way to go. It's natural, it's clean and it's renewable, which means that you can't use it all up. Therefore, not only can solar power help you save money on your electricity bill, it is also good for the environment.
A solar water heater is great for a pool or hot tub. These systems use the heat of the sun, along with energy generated by the sun, and use them to heat your hot tub and pool.