24/21 kW Air-Cooled Standby Generator Aluminum Enclosure 200 SE ATS Liquid Propane/Natural Gas Standby Power Rating 24kW LP/21kW NG Single Phase Generator Voltage 120V AC/240V AC Transfer Switch Included Yes Enclosure Material Aluminum CARB Compliant Yes Engine Cooling Air Generator Engine Brand Generac Engine Size 0.999 L Height 29 in Width 25 in Length 48 in Engine RPM 3 600 RPM Amps LP 100.0 A/NG 87.5 A NG Consumption @ Half Load 203 cu ft/hr