14,000-watt air-cooled home generator automatically starts up when the power goes out * Includes 200 amp whole-house indoor/outdoor automatic transfer switch (carb compliant) * Fast response--power to your home in 10 seconds; premium power quality; quiet operation * 100% corrosion-proof enclosure offers protection from even the harshest seaside conditions * Measures 48 by 26.2 by 29 inches; 5-year/2000-hour limited warranty Battery type needed - Group 51