Learn how a $40 billion dollar company was inspired by a cold classroom and a frustrated college professor. Hear the story behind zoned heating and the first electric thermostat.
What they do:
Made the first room temperature control system.
In 1880, Professor Warren Johnson taught science and math in Whitewater, Wisconsin. In the winter, he hated having his classes constantly interrupted by the janitor who was always doing temperature checks so he could adjust the dampers in the basement. The disruption inspired him to create a bimetal electric thermostat that would signal to the janitor which dampers to open and close in the basement.
About the business:
Five years after his invention, the early version of Johnson Controls was launched. Today, the $40 billion global technology and industrial leader serves customers in over 150 countries. In addition to two other industries – their core industry remains temperature controls.