Willis Carrier
Willis Haviland Carrier (November 26, 1876 – October 7, 1950) was an American engineer, best known for inventing modern air conditioning. Carrier invented the first electrical air conditioning unit in 1902. In 1915, he founded Carrier Corporation, a company specializing in the manufacture and distribution of heating, ventilation, and air conditioning (HVAC) systems.
Seichi Konzo
Seichi "Bud" Konzo (1905 – 1992) was a professor of engineering at the University of Illinois at Urbana-Champaign from 1929-71 and a pioneer in the field of home heating and cooling. He lived in the first air-conditioned house in North America in 1933. His research spanned the decades of the 1920s to the 1990s.