GENERAC RG02224GNAX. Automatic Standby Generator, 1800 rpm, 76A. More details: Automatic Standby Generator, 22 kW, 27.5 kVA Rating, Voltage 120/208, Height 29-11/16 In., Width 29 In., Length 62-29/32 In., Enclosure Material Aluminum, Fuel Type Natural Gas/Propane, Generac Engine Brand, Engine Size 2.4L, Engine RPM 1800, Amps 76, NG Consumption @ Half Load 190 cu. ft./hr., LP Consumption @ Half Load 2.1 gph, 60 Hz, Automatic Volts Regulation Yes, Battery Included No, 12VDC Battery Charger Yes, Battery Requirements Group 26, 525 CCA, Fault Indicator Lights Yes