Impression Installation Trade Fair Hardenberg provides the attendees with the opportunity to explore the exhibits of gas, piping systems, appendages, pumps, tanks and vessels, measuring and control equipment, insulation, roofing, heating, CV boilers, pellet stoves, burners, heat pumps, fireplaces and stoves, underfloor heating, infrared heating, air treatment / air conditioning. air filters, ventilation fans, and much more.