Guardian 24, 000 Watt (LP)/21, 000 Watt (NG) Air-Cooled Whole House Generator with Wi-Fi and 200 Amp Transfer Switch. As the industry leader, Generac is proud to offer peace of mind to more than 2 million homeowners. Generac created the home standby generator market over 60-years ago and continues to provide innovative backup power solutions to homeowner's across the world. Introducing the largest air-cooled generator on the market - Generac's 24kW is a big deal in a small-package. Generac's commitment to continuous improvement, innovation and technology is giving us the ability to bring more power to you. The new 24kW Guardian unit-packs the most power into a small-package, taking up to 70% less space when compared to competitive output products. Disclaimers: Based on internal company data. | Generac 24/21 kW Air-Cooled Standby Generator