Powerful and versatile the T08071 tri fuel portable generator delivers quality power on demand. Best used for large RV's, backup power, farm/ranch and work. Features . Push-button electric start. Volt-lock AVR. Up to 12 hours of power. Heavy-duty 1-1/4 steel tube frame 10 flat-free tires. Circuit breaker protection Specifications . Fuel Type: LP, Natural Gas Gasoline. Voltage: 120V. Alternator: Brush. Rated Wattage: 8000W. Surge Wattage: 10000W. Engine RPM: 3600 RPM. Tank Size: 8 Gallon. Weight: 230 lbs