Central Air Conditioners and Air-Source Heat Pumps U.S. shipments of central air conditioners and air-source heat pumps totaled 629,809 units in December 2021, up 11.6 percent from 564,143 units shipped in December 2020. U.S. shipments of air conditioners increased 9.4 percent, to 352,196 units, up from 321,891 units shipped in December 2020. U.S. shipments of air-source heat pumps increased 14.6 percent, to 277,613 units, up from 242,252 units shipped in December 2020.
Year-to-date combined shipments of central air conditioners and air-source heat pumps increased 9.3 percent, to 10,199,051 units, up from 9,328,762 units shipped during the same period in 2020. Year-to-date shipments of central air conditioners increased 6.3 percent, to 6,282,285 units, up from 5,910,284 units shipped during the same period in 2020. The year-to-date total for heat pump shipments increased 14.6 percent, to 3,916,766, up from 3,418,478 units shipped during the same period in 2020.
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