Pump Flange GasketsFlow Switch Heat Exhcanger Anti Condensing ValveCoin VentGas Shutoff Valve Gas Valve Burner Ignitor Return Sensor Supply SensorPump BlowerTank Sensor Boiler Drain PumpReset SwitchAnti Condensing ValveReturn SensorSupply SensorSafety Limit 230 FBurner GasketCoin VentBlower GasketBottom Combustion Chamber Burner Boiler Coil, InsulationIgnitor GasketIgnitorCombustion Air InletBlowerTransfer TankTank SensorBoiler Drain Boiler CoilGas ValveCoil Cover, InsulationTop Combustion ChamberGas Shutoff ValveHeat ExchangerGaskets Control PanelReset SwitchControl Panel Flow Switch