Choose the #1 selling home standby generator brand. Generac's Guardian Series 8 kW provides the automatic backup power you need to protect your home and family during a power outage. Connected to your existing LP or natural gas fuel supply, it kicks in within seconds of determining power loss automatically and runs for as long as necessary until utility power returns. Generac's OHVI industrial engine is purpose-built to run for extended periods, delivering power when you need it most. Evolution controller features a dual-line, multi-lingual LCD display allowing for easy monitoring and management of generator functions, built-in hour meter & external at-a-glance indicator lights. Certified for installation 18" from the home. Optional Mobile Link wireless remote monitoring system sends status updates to your computer, tablet or smart phone. 24/7/365 customer support. 5 year limited warranty. Includes 10 circuit transfer switch and composite mounting pad. Battery not included.