RUUD® Gas Furnace, Ultra™ Series, 100 kBtu/hr Input BTU Rating, 115 V Voltage Rating, 13 A Amperage Rating, 1644 cfm Rating, 3/4 hp HP Rating, 98 % AFUE Rating, 29.3 kW Wattage, 3 ph Phase, 60 Hz Frequency Rating, Upflow Configuration, Connection Type: NPT, 1/2 in Connection, 5 Number of Speeds, 11 mm W x 10 mm D Blower Size, 21 in W Cabinet Dimensions, Variable Speed ECM Motor Type, Vent Vent, Ducted or Ductless, 5 ton Tonnage, PlusOne® Ignition Ignition System, Direct Spark Ignition Type, 1 kPa, 40 to 70 deg F Temperature Rise