Fun HVAC Facts

The modern air conditioner went through thousands of years of evolution to get to its present state. It's good to learn the facts about what people used to do to stay cool and comfortable during the hottest days of the year. Review these fun facts about HVAC systems that you may not know.

  • Coyne College was one of the first schools to offer training for HVAC technicians from 1899 to the present day.
  • No one person is credited with inventing the mechanical heater or air conditioner. Mechanical fans and other devices have existed since ancient Chinese and Egyptian times.
  • Explorers have found an air conditioner in ancient Egypt that was over 4,000 years old.
  • Windcatchers, also known as wind towers, have been used to ventilate and cool down buildings for thousands of years across the globe. Their use continues to be widespread well into the 21st century.
  • By the mid-18th century, inventors Benjamin Franklin and John Hadley were looking at evaporation as a means of rapid cooling. Their experiment showed that they could lower a thermometer's temperature to create freezing temperatures on a hot day.
  • The invention of the first electrical air conditioner, which catapulted the modern air conditioning industry, is credited to Willis H. Carrier in 1902.
  • Years earlier, in 1851, John Gorrie, a physician, developed and patented a machine that used compressed air and water to cool his sick patients. It was the first machine that resembled a mechanical refrigerator and an air conditioner.
  • In 1914, the air conditioner was installed in the first private home owned by Charles Gates. By the 1920s, Carrier's air conditioners were being installed in hundreds of movie theaters and public venues all over the U.S.
  • In the 1930s, the toxic ammonia was used as a coolant in air conditioners. In high doses, the toxin causes coma, convulsions, or death. If the air conditioner malfunctioned, it increased the risks of a fatal accident.
  • By the 1950s, thousands of homeowners began to enjoy this appliance in their homes.
  • Modern air conditioning has been linked to trends in population growth. This convenience has allowed people to migrate to very hot regions of the country.

The modern HVAC system comprises dozens of parts, such as the thermostat, ducts, vents, evaporator coils, and condensing units. In the past, people's cooling systems were very different and much simpler. They used everything from snow, wooden reeds, manpowered fans, and wind towers to stay cool. Appreciate this modern convenience by having your HVAC unit maintained regularly. Contact us at TDI Air Conditioning to learn more about the services we provide.