Generac Power Systems Series 2-Pole Residential standby generator in gray color features True Power™ electrical technology to provide superior quality power, long life and reliability with superior harmonics sine wave form of less than 5% total harmonic distortion. It measures 48 Inch Length x 25 Inch Width x 29 Inch. It is suitable for use with sensitive electronic equipment and microchip based appliances, such as variable speed HVAC systems. It provides natural gas or LP gas operation. Generator has a power rating of 20 kilo-Watts, current rating of 83.3/75 Amps, voltage rating of 240 Volts and frequency rating of 60 Hz at 1.0 power factor. It provides digital voltage regulation at +/- 1% and offers a continuous power capacity of 20000/18000 Watts.1-Phase Generator features a Generac Power Systems OHVI design for enhanced engine breathing and fuel efficiency. It has a sound attenuated, sturdy aluminum enclosure. It is equipped with an electronic governor, GFCI duplex outlet, 90-Amps external main circuit breaker, flexible fuel line connector system along with status and maintenance interval LED indicators. It has sturdy plateau honed, Spiny-lok cast iron cylinder walls and plasma moly rings for cooler run of engine with minimal oil consumption and longer engine life. It offers optimized faster response for changing load conditions and ensures optimum motor starting capability by electronically torque matching the surge loads to the engine. Generator has a two-line LCD digital Evolution™ controller in English/Spanish/French/Portuguese languages.Generator is equipped with an electronic ignition/spark advance for faster/smooth starting every time and has a full pressure lubrication system to all vital bearings for high performance/less maintenance/durability. Generator has low oil pressure shutdown system and a high temperature shutdown option. It requires group 26R, 12-Volts, 525 CCA minimum battery. Generator can be installed within 18 inches of a building, away from doors/windows/fresh air intakes and unless otherwise directed by local codes. It is provided with a composite mounting pad for easy installation. It undergoes Quiet-Test™ to minimize sound output and fuel consumption. Generator is UL listed and meets CSA/NEMA/EGSA standards.