Fangkuai Boiler Co., Ltd. is a high-tech enterprise that integrates research and development, manufacturing, and sales of clean fuel boilers and clean combustion technology boilers. At present, it has five subsidiaries including Fangkuai Boiler Co., Ltd., Shanghai Fangkuai Boiler and Fangkuai Boiler Installation, one research and development center, two manufacturing plants, and a clean fuel boiler production base with a factory area of nearly 100000 square meters. Its products are exported to dozens of countries and regions. Fangkuai Group has over 60 independent intellectual property rights, advanced clean fuel boiler manufacturing technology, and has jointly established a clean fuel boiler industry university research cooperation base with Tsinghua University and Xi'an Jiaotong University. Enterprises with a research and testing center for clean fuel boilers. The thermal efficiency of the "Fangkuai" boiler can reach 107%, and it has been included in the national special equipment energy-saving catalog. The company has developed a series of wing tube condensing boilers using Ultraten condensation technology, ultra-low nitrogen fully premixed combustion condensing boilers, and FGR combustion technology boilers - ultra-low nitrogen emission fuel gas boilers.