100,000 BTU Two-Stage Natural Gas Furnace, Volts:115, Hertz:60, Phase:1, Airflow:Downflow, CFM:2000, Efficiency:80, Gas Connection:1/2" N.P.T, Ignition:Direct Spark/W Remote Sensor, FLUE:3", 1st/2nd Stage Input BTU:100,000/90,000, 1st/2nd Stage Output BTU:81,000/72,500, Plenum Dims:16-3/4"W X 20-1/8"D, Overall Dims:34-3/4"H X 17-1/2"W X 28-5/8"D, Weight:120 Lbs, Origin:USA