Stiebel Eltron was founded in 1924 by Dr. Theodor Stiebel in Berlin, Germany. Initially, the company concentrated on the manufacture of electric water heaters for the German market. In the decades that followed, Stiebel Eltron branched out into additional products, and markets grew steadily. Today, Stiebel Eltron is the largest manufacturer of water heaters in Germany.