Generac provides peace of mind for homeowners with 24/7 automatic power protection from blackouts whether you are home or away. Back up preselected circuits or the whole house within seconds of a power outage. Permanently installed. Runs on LP or natural gas. Includes prewired, prepackaged, 16-circuit automatic transfer switch for easy installation. Rated Watts (kW): 17, Engine Displacement (cc): 992, Engine: OHVI, Speed (RPM): 3,600, Rated Watts LP (kW): 17, Rated Watts NG (kW): 16, Volts: 120/240, Amps: 70.8 LPG / 66.6 NG, Engine Cooling: Air, Start Type: Automatic, Phase: 1, Noise Level (dB): 66 @ normal load; 60 @ exersize, Transfer Switch: 100 Amp Automatic NEMA 1, Fuel Type: LP or natural gas, Enclosure: Steel, Mounting Pad: Yes, Battery Required: Yes, Battery Included: No, Auto Shutdown: Yes, UL Listed: Yes, Dimensions L x W x H (in.): 48 x 25 x 29 17 kW liquid propane 16 kW natural gas Generac OHVI® 992cc industrial engine for long-run, long-life operation Handsfree operation: no fueling, no manual starting, no extension cords True Power™ technology for safe operation of sensitive electronics Powerful output for greater starting power Quiet-Test™ ultra-quiet self-test feature Steel enclosure with Rhino Coat™ paint finish for durability External main circuit breaker System status LED Maintenance interval LED Digital control panel External GFCI outlet Automatic NEMA 1 transfer switch with 16 prewired conduits including 30-ft., 5-ft. and 2-ft. Flexible fuel line connector Outdoor connection box Composite mounting pad UL listed Standby generators require installation involving permanent outdoor placement, electrical wiring and fuel source connections. We recommend the use of a trained professional for final connections of gas and electric.