... quality warranty 3.Untifreezen&durable Separate Pressure Solar Water Heater:Split Pressurized SystemSplit pressurized solar water heater is composed ... , expansion vessel, pressure gauge, sensors etc) and pressurized water tank.Working principle: When the temperature of the ... Hot water center for bathing, washing and domestic heatingSplit Pressurized Solar Water Heater (KD-SPB)Product Description. * ...