Otto Luhr

Born in 1863, Otto Luhr was a German-born engineer who later worked in Chicago. He is best known for technical books on refrigeration and ice manufacture, including Mechanical and Refrigerating Engineers' Handy Book (1913), published by the Wahl-Henius Institute.

Luhr wrote for people who needed useful, hands-on information rather than theory alone. His work on artificial ice, written with Herman Friedl, focused on the costs and practical realities of ice production, reflecting the industrial needs of the early twentieth century.

Available records indicate that he was born on March 21, 1863, and died in Chicago on May 5, 1932. Even though he is not widely remembered today, his books remain a window into the engineering world of refrigeration before modern air conditioning became common.