Viessmann has been investing for a long time with companies engaged in energy development. Companies have to take care of the year they are in with heat pumps and large heat pumps in the US-Konzern transport agency, and the family does not yet have a safety stop . The Erlös aus dem Verkauf von rund zwölf Milliarden Euro nutzt Viessmann zum Aufbau eines Mischkonzerns, der sich Vermeidung, Reduktion and Speicherung von climate control CO2 zum Ziel gesetzt hat.