Have you ever felt warm water trickle out of a garden hose that's been sitting in the sun? If so, then you've witnessed solar water heating in action. Now imagine that same water moving slowly though a system specifically designed to heat and store water - that is the essence of solar thermal water heating. People have for centuries used water heated by the sun and stored it for bathing, hand washing, cleaning clothes, heating homes and much more. The solar thermal systems used today combine the most efficient techniques for capturing the sun's heat with modern plumbing systems to produce cost effective hot water and reduce the need for gas or electricity to heat water.