Two glazed 4 x 8 foot panels (1.2 x 2.4 m) collect solar energy to heat domestic hot water (DHW) for use in sinks and showers.

The small photovoltaic panel on the right side powers a DC circulating pump.

Here in Wisconsin, a two-panel system like this would normally provide about half the hot water needed by a family of four.

This Quad-Rod heat Exchanger extracts heat from the hot fluid generated by the collector and stores heat in the form of hot water in this 80-gallon (300 liters) storage tank.

The small tank to the left provides backup heat.

A small DC pump (not shown) circulates antifreeze solution from the collectors to the heat exchanger when the sun shines.




Click the link below to download a fact sheet with more information about solar domestic hot water