Description Championâs 22 kW aXis Home Standby Generator System includes a 150-amp aXis automatic transfer switch. This fully automatic system manages your homeâs loads while reducing costs and increasing efficiency. Designed with advanced sound dampening, never needs refueling, works in extreme temperatures, and has an industry leading 10-year limited warranty.PRODUCT DETAILS:Efficient: With less wiring and lower installation costs thanks to our Power Line Carrier technology, youâll save time and money installing your new HSB, easily manage your high-demand appliances with aXis technology, plus advanced airflow design extends engine lifeQuiet Operation: Thanks to advanced sound dampening and a specially designed low-tone muffler, this generator operates at a residential-friendly 67 dB[A] noise level and performs self-diagnostic testsReliable: 24-volt starting system operates in sub-zero temperatures down to -22 ÂF with aluminum-zinc coated steel for weatherproofing and oxidation-resistance