Hangzhou Hangning heat energy technology Co., LTD. is a specialized manufacturing enterprise in heat pump technology research and application , the company is located in Hangzhou city, zhejiang province, China. HONNY as the leader of the heat pump technology, dedicated to the heat pump technology of continuous innovation, on the basis of launching series products such as: domestic heat pump water heater, commercial heat pump water heater units, air-to-water heat pump cooling & heating ...