Keep your home running through the storm season with the Guardian 18kW/ 17kW Home Standby Generator. As the #1 selling home standby generator brand, Generac’s whole home standby generators provide the automatic backup power you need to protect your home and family during a power outage. When installed with the included transfer switch, your generator will turn on automatically and run until utility power is restored, then return to a standby state. Keeping your generator system maintained will keep it in top operating condition. Generac's scheduled maintenance kits provide all the hardware necessary to perform complete routine maintenance on a Generac automatic standby generator. Stay comfortable and stay safe with the Home Standby Generator Collection.