Mixing center controller, microcomputer chip technology the most advanced international; temperature controlfor heating water circulating pump, water center of electric valve, water, when the thermostat is detection of pipeline temperature below the set temperature, water valve open, start acting pump, water from the watersystem flow into a hot water heating system, to meet the the heating system of hot water heat exchange, the heat exchange cycle; when the measured temperature reaches the set temperature of pipeline and water,electric valve is closed, the heat exchange cycle, to achieve the purpose of regulating indoor temperature andenergy saving.