Central Air Conditioner, Heat Pump Shipments Jump Nearly 30 Percent in January

United States combined shipments of central air conditioners and air-source heat pumps totaled 479,484 units in January 2015, up 29.4 percent from 370,582 units shipped in January 2014, according to the latest statistics from the Air-Conditioning, Heating, and Refrigeration Institute (AHRI).