NorthStar Trifuel Generator packs 13,000 surge watts and 10,500 continuous watts! Switches effortlessly from gasoline to dry fuel without powering off and starts fast and easy in all weather. Cast iron sleeve. Rubber isolation mounts dampen vibration for smooth operation. Easy access control and outlet panel. Control panel has "push to reset" circuit breakers. Long-term storage fuel-drain valve quickly drains fuel for storage.Engine Honda GX620 OHV HP 20 Engine Displacement (cc) 614 / 37.5 cu.in. Gross Torque 32.5 ft-lb at 2,500 Rated Watts 10,500 Rated Watts LP 9600 Rated Watts NG 8400 Surge Watts 13,000 Surge Watts LP N/A Surge Watts NG N/A Run Time 10 Hours at 1/2 Load Receptacles (qty.) 7 Noise Level (dB) 79 Fuel Type Gasoline, Propane, or Natural Gas Fuel Capacity (gal.) 10 Start Type Electric Low Oil Shutdown Yes Battery Required Yes Battery Included No Dimensions L x W x H (in.) 36 x 24 x 26 Additional Product Specs * Four 20 Amp 120V receptacles