Air Compressors produce waste heat of about 90 % of the electric power input.

While air cooled compressors vent the waste heat out from the compressor housing by fans water cooled compressors offer the chance to recover the heat due to special heat exchangers installed at the compressor. The water temperature is in the range which us applicable to central heating systems or for warm water production. Also certain processes in production can make use of the energy available.