The predecessor of Zhejiang Liju Thermal Energy Equipment Co., Ltd. was Hangzhou Liju Water Heater Co., Ltd. The company is headquartered in Huzhou, Zhejiang, and has now become one of the leading manufacturers of ultra-low nitrogen gas boilers in China in terms of technical strength and scale. It has obtained more than 80 national patents, including about 10 invention patents. Since its establishment, the company has continued to explore in the field of boiler technology, starting with the development and development of vacuum hot water boilers, and has developed a series of boiler manufacturing technologies such as vacuum phase change heat transfer, water-cooled premixed ultra-low nitrogen combustion, and counterflow flue gas condensation recovery. The company's main business is R&D, production and sales of hot water boilers and steam boilers. The products are used to supply heating and domestic water, and to supply steam required for industrial production. The company's main products are hot water boilers and steam boilers.