Junker's Logo, 1955
History

Heating devices: Bosch takes over Junkers

5 minutes

The global financial crisis that followed the crash on the New York Stock Exchange in 1929 was still ruining countless businesses around the world years later.

Crisis and consequences

Even the group of companies run by industrialist Hugo Junkers slid into insolvency in the spring of 1932. Junkers had patented a completely new type of natural gas-fired water heater in 1894 and was also a technological pioneer in the building of aircraft and aircraft engines. Faced with a difficult situation, Junkers sold his heating appliances operations to Bosch in November 1932 and thus saved his businesses.

Type plate of a Junkers water heater, 1932
Type plate of a Junkers water heater, 1932

Another string and balance

By taking over the gas appliance operations of Junkers in Dessau, Bosch added another string to its bow besides automotive equipment. This made the company less dependent on the automotive industry and helped to strike a better balance for the company by introducing new fields of business. Sales crashes in the automotive industry in 1925 and 1926 had shown Bosch the risk of a one-sided focus.

“Warm and cozy” was the slogan Bosch used to promote the products of the newly acquired division: Under the leadership of Bosch, Junkers also manufactured room heating systems in addition to water heaters.

New start to the west, partnership with Buderus

Bosch Junkers heating system, 1965
Bosch Junkers heating system, 1965

After the second world war, Bosch transferred the production of water heaters to Stuttgart and, in 1953, to a newly acquired manufacturing site in nearby Wernau. The Bosch Thermotechnology division was born. Its major technological achievements include the combi boiler for hot water and heating (1968), and energy-saving condensing technology (1985).

This division grew considerably with the takeover of Buderus AG in Wetzlar in 2003 and is now a leading European manufacturer of energy-efficient heating products and hot-water solutions.

Dietrich Kuhlgatz

Since 1998 I have been at Bosch. I’m working in the Historical Communications department as spokesperson and researcher, in charge of all product history requests. I also take care of contacts to technology and transportation museums.
Before joining Bosch, I studied in history and philosophy at Universities of Konstanz and Hamburg. After graduating, I was editor of a scientific journal and research associate at Deutsches Technikmuseum Berlin.

Picture of Dietrich Kuhlgatz

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