This is an "active" closed loop system which circulates nontoxic antifreeze through the (1) solar panel and back down through 3/4" copper tubing (5) which is wrapped around the solar water tank. There is a heat exchange between the heated antifreeze in the copper tubing and the water inside the tank. (3) The heat exchange occurs beneath the outer skin of the tank and (4) the R-16 polyurethane insulation blanket. This system combines the simplicity of a single pump and the antifreeze protection against overheating or freezing with the safety of a double wall heat exchanger. It comes in different size systems, all approved for various rebates and tax credits.

Solar water heating is indisputably the most cost-effective method of reducing your normal household energy use. It will reduce your yearly bill from 25% to 80%, depending of course on how you heat your hot water.

With the Federal and State incentives It will typically pay for itself well within its warranty period.

As the prices for energy costs increase, so will your savings.