Energy efficient technology uses heat exchange application technology, when the outflow of water through a heat exchanger to cool the heat released into the warm water at the same time, so that the incoming cold water to absorb heat before entering the water boiler preheat temperature close to boiling water, hot water line , which greatly limits to save the energy and time required to boil the water, completely changed the traditional time-consuming drinking disadvantage in power consumption. 1. Dual thermostat protection, safe and reliable operation of the machine; 2. specially designed mechanical water, cold and hot water machine, with the solenoid valve, effectively prevent leakage; 3. hot water, warm water, drink to drink hot water , arbitrary; 4 compact, commercial water heater, home space saving, easy to install; 5 beautiful and practical LED display, real-time display the working status;. water heaters | water heater | Yue Yue Han Han Technology by the Henan Science and Technology Limited. Henan Yue Han Technology Co., Ltd. (www.hnlyjd.com/) strong, credible, in Zhengzhou, Henan electronics, electrical products processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the culvert into the brilliant science and technology and you work for a better future!