Firman RD9000E 9,000-Watt Dual Fuel Generator (Gasoline or LP) with Electric Start Firman 9000-watt generator's dual design can be powered by either gas or propane Powered by a reliable air-cooled, single cylinder 15hp 439cc OHV Firman engine Easy to operate with an E start (Key switch) and recoil start system Easily-accessible control panel includes multiple Duplex and Twist lock sockets Rugged 1-1/4" steel tubing keeps the generator protected in rough conditions