•8.5kW continuous electrical power_x000d_ •439cc Champion OHV engine, electric start and low oil shut down_x000d_ •Automatic 50 amp, 10 circuit indoor transfer switch_x000d_ •Champion Auto Control Module (ACM)_x000d_ •All weather composite mounting pad_x000d_ •All weather steel enclosure_x000d_ •Natural gas or LPG operation_x000d_ •5 year limited warranty_x000d_ •100 percent reliable_x000d_ •24 volt starting system is the most powerful in the industry. Designed to assure starting at temperatures as low as -22 degrees F_x000d_ •Quietest in class. Comparable to normal conversation.