BNEW ATWOOD GCH6A-10E RV WATER HEATER GASELECTRIC WITH HEAT EXCHANGER ReviewbP PP NEW ATWOOD GCH6A-10E RV WATER HEATER GASELECTRIC WITH HEAT EXCHANGER P6 Gallon CapacityPLP Gas or ElectricPInput 8,800 BTU Gas - 1400 Watt ElectricPCut Out Dimensions: 16" Wide x 12.5" High x 16 78" DeepPRecovery Rate of 5.8 GPH for Electric, 7.4 GPH for Gas, and 13.