BAS1110 Features: Advanced electronics will detect a utility power outage and automatically start the generator whether you are home or away. Permanently connected to a continuous fuel supply (liquid propane or natural gas), eliminating the need for refueling and gasoline storage. Professional rust proofing and premium storm grey automotive paint for maximum durability and weather protection. Fuel type: propane (LP vapor), natural gas BTU's / hour at half load: 124,044 (LP) / 124,942 (NG) Operation: fully automatic Amps LP / NG: 125 / 62.5 (LG), 116.7 / 58.3 (NG) Alternator type: brushless design Full pressure lubrication Weekly exerciser Sound attenuation: sound shield technology Overcrank protection Diagnostic alerts with remote system status: low oil shutdown, fail to start, low frequency, and engine overspeed, low voltage, low battery voltage, oil temp high, and transfer switch fault Dimensions (LxWxH): 48'' x 33'' x 30.5'' Weight (generator only): 480 lbs. Battery Sold Separately Includes: Also includes battery trickle charger, hour meter, and installation pad. Construction: The 15 kW's new sound shield technology features engineered air passages, an automotive-style exhaust system, and acoustic foam dampeners for ultra-quiet, neighbor-friendly operation (65 dBA at 7 meters) Specifications: The 15 kW home generator system features a commercially rated, high-performance Briggs and Stratton vanguard V-twin engine for extended life, low maintenance, easy starting and low noise levels - perfect for years of reliable home standby power. Running watts LP / NG: 15,000 W / 14,000 W Starting watts LP / NG: 18,500 W / 17,000 W Engine: 895cc vanguard Voltage: 120 / 240V AC, single phase, 1.0 pf Sound rating (under normal load): 65 dBA at 7 meters Warranty: Best comprehensive parts AND labor warranty, 4 year limited. Manages up to two 5 ton air conditioners with patented air conditioner control module Best comprehensive parts AN