Champion 12.5 kW home standby generator and ATS100 emergency essentials automatic transfer switch is The Simple Solution to a power outage. Provides 24/7 power for your entire home. Quietest-in-class generator operates at a residential friendly 63 dBA and with a 24 V starting system which is designed to operate reliably in sub zero or extreme heat temperatures between -22º F and 104º F - no additional battery warming kit, at additional cost, is needed. Champion home standby generators come standard with an industry leading 10 year limited warranty, which is the longest standard limited warranty on the market. A power outage lasting only a few days can cost thousands in repairs. If power goes out, a Champion home standby generator automatically detects the outage. In a matter of seconds it will start and deliver continuous, reliable power to your home. When utility power is restored, the generator will automatically return to standby mode. Provides 12,500 W of continuous power on propane and 11,000 W on natural gas. Performs a weekly self-diagnostic tests to assure that it is ready and waiting for the next power outage. Permanently installed outside of your home and connects directly to your homes natural gas line or propane fuel supply. Champions innovative gulling design provides easy access to the engine and control panel for simple installation, maintenance or service. Enclosures all-weather design is rust and corrosion resistant and protects from the elements. Comes with an all-weather composite mounting pad. Powered by a Champion 717cc OHV v-twin engine. The alternator uses 100% copper windings producing less than 5% total harmonic distortion (THD) to ensure safe use with sensitive electronics. ATS100 automatic transfer switch operates 99 amp, 12 circuit load. Ideal for homeowners who want to power emergency essentials during a power outage as opposed to the whole house. NEMA 3R rated enclosure for outdoor use.