Ideal for applications that require ultra-quiet operation and exceptional fuel economy. Achieves greater power output with less effort, resulting in significantly reduced fuel consumption both during exercise and under full load. Features aluminum enclosures for extra corrosion protection in coastal areas. Runs on natural gas or LP gas. UL listed. Transfer switch sold separately. write a review Engine Guardian Quiet, 2.4L Engine Speed (RPM) 1,800 Engine Displacement (cc) 2,400 Rated Watts (kW) 36 Rated Watts LP (kW) 36 Rated Watts NG (kW) 36 Volts 120/240 Amps 150 Engine Cooling Liquid Start Type Automatic Phase 1 Noise Level (dB) 64 Fuel Type LP or natural gas Enclosure Aluminum Mounting Pad No Battery Required Yes Battery Included No Auto Shutdown Yes Low Oil Shutdown Yes Safety Alerts Yes UL Listed Yes Dimensions L x W x H (in.) 77 x 33.5 x 45 Additional Product Specs * 36 kW liquid propane * 33 kW natural gas * Aluminum, corrosion-resistant enclosure (Gray) * Quiet-Test feature for near-silent operation during self-testing; 50% quieter than competitive models * Generac industrial liquid-cooled in-line 4-cycle engine * Automatic safety shutdowns and exerciser * 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.