One of the most powerful air-cooled generators on the market today, the Guardian Series 20 kW automatic home standby generator can provide whole-house backup power for many homes. Features: a. 5 Year Limited Warranty - For automatic standby generators. b. True Power™ Technology - Delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances. c. Generac generators and engines are engineered and built in the USA*. *Built in the USA using domestic and foreign parts d. Generac's G-Force Engine - Is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than any competitive engine. e. Quiet-Test™ Self-Test Mode - Runs at a lower RPM for a five or twelve minute test, making generators significantly quieter than other brands while consuming less fuel. f. 24/7/365 Customer Support Team - Standing by all day, every day from our headquarters in Wisconsin to answer any questions you might have. g. RhinoCoat™ powder-coated finish - Helps make corrosion-resistant aluminum perfect for all weather conditions. h. Generac’s Evolution™ Controller - Features a multilingual LCD display that allows users to monitor battery status and track maintenance intervals to ensure your generator is always in top operating condition. i. Mobile Link™ Remote Monitoring - Allows you to monitor the status of your generator from anywhere in the world using a smartphone, tablet, or PC. Easily access information, such as the current operating status and the generator’s maintenance schedule. Connect your account to your authorized service dealer for fast, friendly and convenient assistance. (sold separately)