Circulation pumps are used in domestic, office and commercial buildings for the transport of drinking, heating and cooling water between heat generators and heat consumers or between cooling generators and cooling consumers.  More than 140 million circulators are in operation throughout Europe, which are replaced every 10 years on average.

In future, however, the efficiency of circulating pumps must not be seen only in the context of energy demand. In this context, the project involves the development of innovative design concepts that are optimized in terms of the use of resources, but retain the achieved energy efficiency according to the state of the art at the best possible life cycle costs.