According to AHRI report "November 2018 U.S. Heating, Cooling Equipment Shipment Data" U.S. shipments of central air conditioners and air-source heat pumps totaled 450,399 units in November 2018, up 4.3 percent from 431,668 units shipped in November 2017. U.S. shipments of air conditioners increased 1.8 percent, to 274,586 units, up from 269,842 units shipped in November 2017. U.S. shipments of air-source heat pumps increased 8.6 percent, to 175,813 units, up from 161,826 units shipped in November 2017.
Year-to-date shipments of central air conditioners increased 4.4 percent, to 5,107,440 units, up from 4,891,764 units shipped during the same period in 2017. The year-to-date total for heat pump shipments increased 12.3 percent, to 2,740,836, up from 2,440,269 units shipped during the same period in 2017.
Year-to-date combined shipments of central air conditioners and air-source heat pumps increased 7 percent, to 7,848,276, up from 7,332,033 units shipped in November 2017.