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He was granted a patent for his ice-making machine in 1851 but never saw it come to the marketplace, as his chief financial backer died.
The AC invention date—1902—is credited to Carrier.
Carrier’s company installed the first well-designed cooling system for theaters in Los Angeles in 1922.
On Memorial Day in 1925, Carrier introduced a centrifugal chilling system at New York’s Rivoli Theater: a breakthrough in HVAC inventions.
In 1931, H.H. Schultz and J.Q. Sherman invented the first room air conditioner; it sat on a window ledge, similar to portable units today.
In 1933, the Carrier Air Conditioning Company of America developed an air conditioner using a belt-driven condensing unit and associated blower, mechanical controls, and evaporator coil, and this device became the model in the growing United States marketplace for air-cooling systems.
In 1935, the first forced-air furnace was introduced and used an electric fan to distribute coal-heated air through the home’s ducts; gas- and oil-fired versions followed.
In 2000, air conditioning/refrigeration was named among the 10 greatest mechanical engineering achievements of the 20th century, according to a survey of ASME members.
By 2009, the Energy Information Administration reported that 87 percent of all American households—about 100 million homes—used AC units.
© 2022 The American Society of Mechanical Engineers.
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