Who is the manufacturer of Tempstar air conditioners?

The manufacturer of Tempstar air conditioners is International Comfort Products or ICP, which is a subsidiary of Carrier Global Corporation. ICP is headquartered in Lewisburg, Tennessee, and operates major manufacturing facilities in Lewisburg, Tennessee and in other locations including facilities in Mexico and collaborations with Carrier factories. ICP manufactures several HVAC brands that share common engineering platforms, components, and assembly lines, including Tempstar, Heil, Arcoaire, Keeprite, Comfortmaker, Day and Night, and Airquest. All of these brands are built using many of the same internal parts such as Copeland scroll compressors, all-aluminum Micro-Channel coils, and Carrier-designed control boards. Carrier Global acquired ICP in 1999, so Tempstar is essentially a Carrier-engineered product built by its value-brand division. The actual corporate entity that appears on the data plate is International Comfort Products LLC, a Carrier company. This is similar to how General Motors makes Chevrolet, Buick, and GMC vehicles on shared platforms. So while you buy it as Tempstar through an independent distributor, the manufacturer is ICP under Carrier, and it is built in the United States with global components, backed by Carrier warranties and engineering standards.