Solar water heating is a renewable and reliable energy technology. When sunlight strikes the selective surface within the solar collector, the absorber draws maximum heat from the sun. Either a heat - transfer fluid, or the actual potable water to be used, flows through the copper U tubes, or heat pipes, and picks up the heat from absorber. The heated water is then stored in an insulated tank until needed. The Solar Lord hot water system is a ‘pumped’ solar system that circulates the water (open loop) or a heat-transfer fluid (closed loop) through the solar collector. In a direct (open loop) heating system, potable water is heated as it is circulated by a pump through solar collectors mounted on the roof. The heated water is then stored in a ground - mounted storage cylinder and rises up the cylinder by natural convection to the top where it is then ready for use (hot water outlet). Indirect (closed loop) heating systems use a heat exchanger storage tank. In indirect circuit only a heat - transfer fluid runs through the solar collector. The fluid is circulated between a collector and a tank by a pump. The heat that is absorbed from the sun is transferred to the potable water inside the storage tank as the fluid passes through a heat exchanger. Indirect (closed) circuit protects the collectors from freezing and is recommended for areas that are susceptible to frost or harsh water conditions. Inside and outside tubes are made from extremely strong borosilicate glass that are fused together to form a vacuum between two tubes.  1. Outer Tube Allows the sun's rays to pass through with minimal reflection 2. Inner Tube Special selective coating on the outside of the tube contributes the highest thermal efficiency and good thermal stability 3. Evacuated Space Stops heat loss / emission to outside of the glass tube, making these collectors particularly effective during cold and cloudy weather 4. Selective Surface Absorbs the maximum solar radiation to convert into heat efficiently 5. Cylindrical Shape Sun's rays are perpendicular to the absorber for most of the day 6. Fin Transfers the heat to copper tube without heat loss 7. Copper Conduction Tube Passes the heat to the water / fluid inside the copper tube 8. Barium Layer Actively absorbs the air to maintain the vacuum between the two tubes The sun's rays pass through the outer tube, and perpendicularly strike the absorber surface on the outside of the inner glass tube. The selective surface absorbs maximum solar radiation and converts it into heat very efficiently. Because the sunlight is perpendicular to the absorber tubes almost all day, the sun's energy is absorbed and transferred efficiently. The insulation formed by the vacuum space between the outer and inner tubes minimises heat loss to the outside, whilst allowing the sun's energy to reach the copper tube inside the inner glass tube.
 To Order a Solar - Lord or to Contact UsMail Order & Credit Card facilities available.
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