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Separated High Pressure Solar Water Heater System System Includes: 18 Tube - 58mm x 1800mm Vacuum Tube Solar Water Collector 150 Liter (40 Gallon) Solar Water Tank Working Station Air Vent 1 Gallon of Food Grade Propylene Glycol Produces Approximately 140-200 Liters of 50°C Water per day Other Recommended Accessories: Gas Heating Upgrade - Add a 2nd coil to solar water tank for gas backup heating Solar Tube Increase Upgrade - Upgrade heating power of your system to compensate for cloudy days, extra demand for water & hotter stored water. Thermostatic Mixing Valve - For prevention of scalding in case of extra storage of heat Weather Resistant Closed Loop System Collector Warranty: 5 Years Tube Warranty: 15 Years SRCC Certified - Eligibile for Government Tax Rebate ISO 9001:2000 Standard - Reg: CN00208Q10492R0M ISO 14001:2004 Standard - Reg: CN-00208E20080R0M ROHS Report - Reg: SHR0808053030F001C About the Collectors & System Some of the many uses of solar water heaters: Heat domestic home water Solar Radiant home heating Radiant floor heating Pool & jacuzzi heating Biodiesel process heating Uses heat pipes to collect heat to the water supply. This solar heater can work under high pressures and can supply hot water to high and far away places. Product model: SC58## (## = number of tubes) Use of heat pipes allows for high heat absorption efficiency and rapid heat transfer. Also allows for freeze-protection for year round use. Easy plugin-in design and installation. Corrosion resistent aluminum manifold and frame. Optional 38° frame included for ground/flat roof installation. Can withstand wind velocity of 36m/s (81 mph) Can supply hot water to both small and large tanks of water and meet small and high demands. Economical for homes, hotels, schools, domitories, hospitals and any other tall buildings.