... 14 steps, such as degreasing, phosphorescing, electrostatic spraying, high-temperature ripening, etc, to ensure the stability and anti-corrosion of ... leakage, and two steps to protect from overheat(stop by temperature controller at 70°C, and by breaker at 110°C). ... systems can be chosen to realize auto. control of hot water consumption. Non-Pressurized Solar Water Heaters(LINUO PARADIGMA)