Long track record of innovation and technology leadership

The origins of today's DencoHappel date back to 1909. On the one hand, this is the year that Deutsche Luftfilter-Baugesellschaft mit beschränkter Haftung (DELBAG®) was founded in Breslau. On the other hand, Otto Happel founded the "Gesellschaft für Entstaubungs-Anlagen mbH" (GEA) in Bochum in 1920, and in Great Britain, DENCO was founded in 1944, which was taken over by GEA in 2006.

Starting with the production of textile filters to filter the cooling air of electric machines, Otto Happel rapidly continued to develop the company. By 1922, he revolutionized the circulatory water cooling system of large electric machines using the elliptical finned tube, which was also launched on the heating market after 1945.
The next major step took place in 1954 with the founding of HAPPEL KG, in which the continuously expanded manufacture of convectors was consolidated.
In 1970 – fifty years after its founding – the current DencoHappel could boast 8,000 air-cooled installations in process engineering, and at the same time the 500,000th unit heater left the plant.
The breathtakingly fast growth of the company demanded new business structures. In order to finance the influx of capital, GEA AG was gradually transformed and went public in 1989.
The takeover of DELBAG Luftfilter GmbH, Berlin in 1990 completed the entry into air-filtration technology.
safeguard clean production conditions and minimize health hazards.
Economical motors, systems for heat recovery and utilization of environmental thermal energy enhance the energy efficiency of DencoHappel solutions. Moreover, in-house control systems offer further savings potential. This is what DencoHappel sums up in Air Eco2nomy.
With its premium brands CAIRplus®, DENCO®, MultiMAXX®; Multi Flair®,
DencoHappel COM4®, Flex-Geko®, FireTex®, SepTex® and Sahara® as well as the DELBAG® products, DencoHappel has repeatedly set technological standards through innovation for over a century, and can satisfy nearly every conceivable customer wish.

DencoHappel headquarters are based in Herne, Germany. Production sites in Germany, Czech Republic, Turkey, China and Russia as well as sales organizations and distributors in more than 50 countries guarantees customer proximity, high flexibility and efficiency.

DencoHappel is a € 300 million business with over 1,700 employees. Together with its shareholder Triton Partners, the company invests in innovation and growth in all relevant markets and regions

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