Vaillant Group is an internationally operating heating, ventilation and air-conditioning technology concern based in Remscheid, Germany. As one of the world's market and technology leaders, the company develops and produces tailor-made products, systems and services for domestic comfort. The product portfolio ranges from efficient heating appliances based on customary fuels to system solutions for using regenerative energy sources. In financial year 2007 the company, which has been family-owned since its founding in 1874, achieved with almost 12,400 employees sales totalling about €2.4 billion. At 16 production or R&D locations in seven European countries and in China, we develop and manufacture heating, ventilation and air-conditioning technology products for sale in Europe and Asia.