ARLINGTON, Va. — United States shipments of central air conditioners and air-source heat pumps totaled 370,582 units in January 2014, up 23 percent from 301,176 units shipped in January 2013, according to Air-Conditioning, Heating, and Refrigeration Institute (AHRI) statistics. U.S. shipments of central air conditioners increased 19.8 percent, to 215,062 units, up from 179,492 units shipped in January 2013. U.S. shipments of air-source heat pumps increased 27.8 percent, to 155,520 units, up from 121,684 units shipped in January 2013.

U.S. shipments of gas warm air furnaces for January 2014 increased 18.4 percent, to 209,667 units, up from 177,125 units shipped in January 2013. Oil warm air furnace shipments, however, decreased 18 percent, to 2,376 units in January 2014, down from 2,898 units shipped in January 2013.