Generac Guardian® 24kW Aluminum Home Standby Generator w/ Wi-Fi #7209Ships in 6 to 12 months. The New Generac Guardian 7209 24kW Generator, the most powerful air cooled generator on the market, supplies your entire home during an outage. Ideal for installations with an existing automatic transfer switch or special purpose ATS. Generac Guardian is the first air cooled generator to comply with the 2017 NEC requiring a shutdown switch. * Automatic Transfer Switch Sold Separately The 24kW Generac Guardian Standby Generator