1924
Founding of the company by Ferdinand Schwarz in Düsseldorf – Grafenberg
1943/44
Relocation of the company destroyed by the war to the city Römhild in the Thuringian Grabfeld
1953
Nationalisation as part of the industry politics of the GDR and renaming into VEB Elektro Industrieofen- and Gerätebau Meiningen-Römhild and strong integration into
national economic planning of the RGW (council for mutual economic aid)
1989/90
Administration by the trust after German Unification and renaming in ELIOG Industrieofenbau GmbH
1992
Privatisation,
purchase of the company after German Unification by Mr. M. G.
Leonhard, R. Noll and H.P. Schmitz and change of name into ELIOG-kelvitherm Industrieofenbau GmbH
2002
Alienation of the company by private investors.
2007
Part of ELIOG Technologie AG, Erfurt
2010
Continuation of the company for an unlimited period under guidance of insolvency administrator G. Scheid, Leipzig
01.01.2011
Assumption of the operations of ELIOG-kelvitherm