Waste heat is generated everywhere, in households, companies, public spaces, large industrial production processes and energy production. Sources of waste heat are, for example, ventilation, waste water/gray water, property-specific heating/cooling, processes in various industries and energy production processes.

By recovering waste heat, the climate load is reduced, energy efficiency is increased and financial benefits are also achieved. Waste heat can be utilized on a small and larger scale. Condensate heat from the refrigerator, which acts as a cooling device at home, is transferred to the room, and waste heat from industrial production can be recovered and led to the district heating or district cooling network.