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Pre-Heated Solar Water Heater
Thermosiphon solar collectors provide Mains Pressure pre-heating via a high efficiencycopper coil heat exchanger installed within the solar collector tank. Theway in which the Mains Pressure solar collector heats water is the same as the nonpressure solar collector. Instead of using the water in the tank directly, asthe Non pressure does, the type uses a 45-60 meters copper coil heat exchangerinside the tank which provides more than 1.2m² of heat transfer area. Whenwater flows though the coil, it absorbs heat from the water inside the solar collectortank.The solar collector tank is therefore for thermal storage. One advantage of thissystem is that almost no water is introduced into the tank (apart from occasionaltopping up), so corrosion and scale buildup are almost totally eliminated. Tanksare designed for low to medium pressure applications, using a gravity feed tankor pressure reduction valve. Direct connection to Mains Pressure water supplyis not permitted. Please check your local building / plumbing regulations regardingthe installation of water tanks.
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