Nut for HeaderWasher for HeaderHeader Gasket AssemblyBolt for HeaderHeat Exchanger End BafflesHeader Bolt AssemblyFusible Link AssemblyFlame SensorBurnerAnti-Rotation BracketManifoldGas ValveBy-Pass Valve ControlBezelTemperature Control AssemblyPlate AssemblyTemperature Control LabelKnobThermostat KnobStop PlateWire Harness AssemblyTemperature Control GasketHeat Exchanger Tube AssemblyFlue Collector Hold Down ClampHeat Exchanger Support ClipReturn HeaderHeader Gasket AssemblyHeat Exchanger BaffleHeat Exchanger End BafflesBaffle RetainerInlet/Outlet Header Nut for Header Bolt for Header Retainer Bracket ScrewBrass Drain PlugFlange BoltFlange, 2"Flange SleeveControl Cap BoltsBolt for HeaderBy-Pass Assembly By-Pass Valve GasketFlange & Gasket AssemblyHigh-Limit Switch AssemblyHigh-Limit Switch CoverHigh-Limit Switch Retainer ClipTemperature Sensor Retainer BracketO-Ring, Temperature Control BulbProtector Sleeve Temperature SensorBrass Connector BodySiphon Loop AssemblyPressure SwitchPressure Switch & Siphone Loop AssemblyFlange BoltBrass Plug Go Back General View Brass Nut High-Limit Switch Wire Harness By-Pass Valve Rod By-Pass Valve Spring By-Pass Valve Disc High-Limit Switch High-Limit Switch Flange Gasket Temperature Sensor Retainer Bracket Retainer Bracket Screw Temperature Sensor O-Ring, Temperature Control Bulb Protector Sleeve Brass Plug Flange Bolt Brass Drain Plug Pressure Switch Flange Bolt Siphon Loop Assembly High-Limit Switch Brass Connector Body High-Limit Switch Cover High-Limit Switch Retainer Clip High-Limit Switch Wire Harness High-Limit Switch Flange Gasket Flange Sleeve Flange, 2" By-Pass Valve Disc Control Cap Bolts By-Pass Valve Spring Brass Nut By-Pass Valve Rod By-Pass Valve Gasket By-Pass Valve Control Wire Harness Assembly Bezel Plate Assembly Temperature Control Label Temperature Control Gasket Stop Plate Knob Stop Plate Thermostat Knob Thermostat Knob Flue Collector Hold Down Clamp Bolt for Header Heat Exchanger Support Clip Nut for Header Return Header Header Gasket Assembly Heat Exchanger End Baffles Heat Exchanger End Baffles Heat Exchanger Baffle Bolt for Header Bolt for Header Header Gasket Assembly Nut for Header Inlet/Outlet Header Washer for Header Fusible Link Assembly Flame Sensor Anti-Rotation Bracket Gas Valve Burner Burner Manifold Manifold Manifold Manifold Baffle Retainer