Whether you are home or away, the IntelliGEN series will provide fully automatic operation and a permanent connection to natural gas or propane during a power outage. Design is half the size, sound, fuel consumption and price of most competitive systems. U.S.A.Engine Displacement (cc) 895 Rated Watts (kW) 15 Volts 120/240 Amps 125/62.5 LP, 116.7/58.3 NG Fuel Type Propane or Natural gas Additional Product Specs * 895cc Vanguard™ engine * 18,500 Watts (LP)/17,000 Watts (NG) surge * 15,000 Watts (LP)/14,000 Watts (NG) running * Amps: 125/62.5 (LP); 116.7/58.3 (NG) * Fuel consumption @ 1/2 load: 1.56 gallons/hr. (LP); 126,000 BTU/hr. (NG) * Fully-automatic operation