Briggs & Stratton 40532 12kW Standby Generator with 100 Amp, 16 Circuit Transfer Switch Includes 100 amp, 16 circuit automatic transfer switch with flexible indoor/outdoor installation 12 kW with Symphony II power management can manage a home, up to 5,500 sq. ft. with a 4-ton air conditioner saving you thousands less than a previously required 20 kW Closer placement options as close as 18 in. from your home per the National Fire Protection Agency 37 standard Comprehensive 5-year parts, labor, and travel limited warranty