Viessmann Heating Technology Beijing Co., Ltd. is a subsidiary of the Viessmann Group, Germany. Worldwide, Viessmann Group is one of the most important manufacturers of heating technology products and has approximately 7,000 employees. Viessmann produces heating equipment in ten factories, both in Germany and abroad. The sales organization comprises a total of 111 sales offices based in Germany and in 34 other countries. The product range of the Viessmann Group includes boilers for operation with oil and gas ranging from 4-20,000 kW output, as well as all modular components designed for this product range. In addition to that, for many years, the Group offers equipment for renewable energy such as solar collectors, heat pumps or wood boilers. In China, Viessmann operates a nation wide service network with sales offices, sales representatives and engineers.