Includes free 100 Amp pre-wired load center with 12 circuits Powerful, air-cooled OHVI engine. Fueled by natural or LP gas. Built-in component eliminates the need for special kit to transfer between natural gas and liquid propane. Remote-mounted automatic transfer switch has built-in emergency load center for fast and efficient unattended transfer to generator when utility current fails. Installation kit also comes with external connection box, flexible fuel line, 30ft. of pre-wired flexible conduit and composite mounting pad. Built-in charger keeps battery at optimum level. Key locks for security. Automatic 7-day exerciser runs the system for 7 minutes weekly to maintain top running condition.Engine 992cc Generac OHVI V-Twin HP 30 Rated Watts LP (kW) 13 Rated Watts NG (kW) 13 Volts 120/240 Engine Cooling Air Start Type Automatic Phase Single Transfer Switch Yes Fuel Type Liquid Propane, Natural Gas Enclosure Yes, Steel Mounting Pad Yes Battery Required Yes Battery Included No Auto Shutdown Low Oil, Low Oil Pressure, Overspeed, Over Crank, High Temperature UL Listed Yes Dimensions L x W x H (in.) 48 x 24 x 28 1/4 Additional Product Specs * Can run most 4-ton air conditioners without expensive load management devices * Volts LP: 108.3 Amps @ 120 Volts, 54.2 Amps @ 240 Volts * Volts NG: 108.3 Amps @ 120 Volts, 54.2 Amps @ 240 Volts * Packaged with a 100 Amp, 250V transfer switch * Circuit Breaker Protected: Provides 12 circuits * Full pressure lubrication * Baked on poly coat paint prevents corrosion U.S.A.