1/1/2001
Acquires J.E. Stork Air and enters the comfort ventilation market. Zehnder Comfosystems is developed out of this new channel. Comfosystems is one of the first integrated geothermal heating/cooling/heat recovery ventilation systems in the world. Zehnder America, Inc incorporated in the United States and starts US radiator division.
1/1/2000
Zehnder celebrates 70 years of Zehnder Multicolumn. On this occasion, it gets the name of the times when it was created: Zehnder Charleston.
1/1/1993
Hans-Peter Zehnder (4th generation) takes over the Chairmanship of the Group Management.
1/1/1986
Going Public of Zehnder Holding AG. The new shares are listed on the market.
1/1/1984
Zehnder develops a product design that also meets high aesthetic demands. The first design radiators are launched in the market – Zehnder Art Deco and Zehnder Sculptur.
1/1/1980
Thanks to the merger of Zehnder and the radiator manufacturer Beutler in Lahr, the strong market position can be further consolidated. The first towel radiator (Zehnder Universal) is launched in the market. For the first time, a dual-use radiator has been developed.
1/1/1964
Owing to the high demand, a German subsidiary is formed in Riegel.
1/1/1953
New markets are captured. Zehnder exports its tubular radiators to Germany.
1/1/1930
Robert Zehnder invents the tubular radiator (Zehnder Charleston). In contrast to the cast radiators used in those times, the Zehnder tubular radiator was a lot lighter, had better heat conductivity, was much more cost-effective to manufacture and had a more attractive appearance.
1/1/1923
The brothers Walter and Robert Zehnder developed and built a light motorcycle that was manufactured in large numbers for many years.