ATWOOD RV WATER HEATERS WITH ELECTRONIC IGNITIONAtwood Water Heaters feature a patented “through-tube” combustion chamber, utilizing the pilot flame to help maintain water temperature rather than losing this heat energy into the atmosphere. All units are lightweight and compact, with easily accessible controls for servicing.FUEL-SAVING FLEXIBILITYAtwood water heaters operate on LP gas. In addition, there are models that operate from an electric source, with an engine coolant heat exchanger or both. With the electric option, the heater can be run either off an electrical hook-up or a generator. The heat exchanger safely transfers otherwise wasted energy from the engine cooling system of a motorized coach to the water heater during travel. When you arrive at your destination, hot water is available immediately, saving you energy, time and money.Integrated Gas/Electric Controls65631 and 65634 Gas/Electric models feature microprocessor technology with a dual switch panel that eliminates the need for 120-v remote switch. † 65631 depth dimen. reduced by 1/2".Model GC10A-4EMfr. #94022 Capacity, Gallons: 10.0Energy Source LP GasElectricInput Gas BTUs: 10,000 Electric Wats 1,400 Recovery Gallons/Hour Gas: 8.5Electric 6.2Gas-Electric 14.7Unit Weight (lbs.) Empty: 24 Full: 107 MFG# 94022 UPC# 692931940229