What came before the AC

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Many inventors tinkered with modern strategies for keeping cool under the heat. But it was Willis Haviland Carrier’s invention called the 'Apparatus for Treating Air' (U.S. Pat# 808897) that proved the plausibility of manmade weather by controlling temperature and humidity, eventually earning him the title as the father of airconditioning. Carrier started an era of refined understanding of electrical systems through his Rational Psychrometric Formulae, which remains the basis for all the integral calculations in the airconditioning industry.


But the attempts to outsmart the weather before the AC came along also warrant attention. Practical strategies to stay cool existed at the dawn of the 20th century. People braved the hot weather with fans of all shapes and sizes. The Roman Emperor Elagabalus made his mark by warding off third-century summer by commanding 1000 slaves to fill his pleasure-garden with a mountain of snow.

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Fast forward to 1758, Benjamin Franklin and John Hadley discovered that the evaporation of liquids had a cooling effect. Michael Faraday discovered the same in 1820. By the 1830s, Dr. John Gorrie built an ice-making machine in a hospital in Florida. He then patented the idea in 1851 but financial struggles killed off his invention. In 1881, following an attempted assassination of President James Garfield, naval engineers created a makeshift cooling machine that used half a million pounds of ice to keep the injured president cool and comfortable. The machine failed in its mission.

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By the 1920s, residential cooling machines were invented, thanks to iconic aircon marque Carrier, which began the science of modern airconditioning for home use.



Hobson Air is among the many cooling and heating systems contractors which uphold Carrier’s science of modern air conditioning. Go here for more exciting discoveries in the airconditioning industry.