The success story of this family business began with its formation on the 14 March 1731. Initially, the Buderus family firm produced cast iron products and pig iron, but soon specialized in the manufacture of stoves.
• 1861 – Acquisition of the "Hedwig" foundry near Lollar (established 1853) and located next to the Main-Weser railway (today: Lollar factory).
• 1870 – Establishment of the "Sophien" foundry in Wetzlar of the Gebrüder Buderus OHG.
• 1878 – Production of modern room stoves that are fired with anthracite or coal.
• 1898 – Patent application for the first in-house designed sectional cast iron boiler.
• 1911 – Restructuring and associated establishment of the Buderus'sche Handelsgesellschaft m.b.H, with its head office in Wetzlar.
• 1912 – The activities of this sales organization now cover the whole of Germany and some neighboring countries.
• 1927 – Manufacture of Stabulo steel radiators at the Lollar factory.
From reconstruction to the present
After World War II, the change from wartime production to the manufacture of stoves came quickly; the production was later changed to the manufacture of radiators and boilers.
• 1953 – Manufacture of steam and central heating boilers made from steel in the newly formed subsidiary, Omnical GmbH, Ewersbach factory.
• 1977 – Technological leap through low temperature technology (Ecomatic boiler).
• 1981 – Entry into the advanced condensing technology with the "Ecomatic-plus" cast iron boiler.
• 1987 – Restructuring of the Buderus AG by forming individual product-specific companies.
• 1993 – At the beginning of 1993, Buderus Heiztechnik acquired 40% of the Nefit Fasto B.V. shares; the remaining 60% came to the group in September 1994.
• 1997 – Takeover of Solar Diamant Systemtechnik GmbH.
• 1998 - Double jubilee - 100 years ago, the first Buderus patent for a sectional gray cast iron boiler and 5 million cast iron boilers produced in the same period.
• 2002 - Prototype of a fuel cell boiler in development.