The Champion Power Equipment Home Standby Generator System - 8.5 kW Home Standby Generator and ATS50 (50 Amp, NEMA 3R Automatic Transfer Switch) - is The Simple Solution to a power outage. Security, convenience, health and safety are all things that every homeowner holds dear. Don't put these things at risk during a power outage. Millions of individuals suffer from the effects of a power outage annually. No electricity means no lights, no heat or air conditioning, no internet, no refrigeration, etc. A power outage lasting only a few days can also cost the average family thousands in repairs. If power goes out a Champion Home Standby Generator will keep the lights on, run heat and air conditioning, keep security systems operating, power major appliances, keep the home business operating, power a sump pump, protect against frozen pipes, give you peace of mind while you're away, and much more. No more searching for flashlights, no extension cords, no refueling in the dark. If utility power is interrupted, the Home Standby Generator will automatically detect the outage. In a matter of seconds it will start and deliver continuous, reliable power to your home - ensuring the things you need most stay on. When the utility power is restored to your home, the generator will automatically return to standby mode. It will also automatically perform weekly self-diagnostic tests to assure that it is ready and waiting for the next power outage. The generator is permanently installed outside of your home and connects directly to your home's natural gas line or propane supply. Without the need to manually refuel and with quietest-in-class noise levels, this generator will keep your life interruption-free. Champion designed a low-tone muffler that reduces noise through a unique sound attenuating baffle system. This, along with the sound dampening liner, makes the 8.5 kW Home Standby Generator quietest-in-class operating at just 59.5 dBA. It is ideal for homeowners who want to power em