Solar water heating systems use heat exchangers to transfer solar energy absorbed in solar collectors to the liquid or air used to heat water or a space.
Heat exchangers can be made of steel, copper, bronze, stainless steel, aluminum, or cast iron. Solar heating systems usually use copper, because it is a good thermal conductor and has greater resistance to corrosion.
A liquid-to-liquid heat exchanger uses a heat-transfer fluid that circulates through the solar collector, absorbs heat, and then flows through a heat exchanger to transfer its heat to water in a storage tank. Heat-transfer fluids, such as antifreeze, protect the solar collector from freezing in cold weather. Liquid-to-liquid heat exchangers have either one or two barriers (single wall or double wall) between the heat-transfer fluid and the domestic water supply.
|Product Name ↓||Price|
|American Water Heaters Replacement Dip Tube with Antisiphon Hole||$3.25|
|American Water Heaters Replacement Dip Tube with Open End||$3.25|
|Rheem Solaraide HE 120G Tank w/ Heat Exchanger||$2,715.67|
|Rheem Solaraide HE 80G Tank w/ Heat Exchanger||$2,332.66|
|Stiebel Eltron 80 Gallon Solar Hot Water Tank with Dual Heat Exchanger||$1,595.00|
|Stiebel Eltron 82 Gallon Solar Hot Water Tank with Heat Exchanger||$1,395.00|
|SunEarth 120G Tank w/ Heat Exchanger||$1,791.87|
|SunEarth 80G Tank w/ Heat Exchanger||$1,509.31|
|Thermomiser 120G Tank with Heat Exchanger, Stainless Steel||$2,384.50|
|Thermomiser 60G Tank with Heat Exchanger, Stainless Steel||$1,485.00|
|Thermomiser 80G Tank with Heat Exchanger, Stainless Steel||$1,745.00|