Pilot Tube Pilot Orifice Pilot Generator Pilot Pilot High Tension Wire Pilot Orifice Pilot Tube Bulb Sensor Immersion Well Hi-limit 140f Hi-limit 135f UG Cap UG Spring Flange Gasket In/Out Header Flange Kit Pressure Switch Tube Assy. Pressure Switch Toggle Switch Thermostat Control Refractory Stock Kit Gas Valaves Ignition Control Transformer Thermostat Knob Knobstop Drafthood Kit Flue Collector Jacket Top Hi-limit 135f Hi-limit 140f Bulb Sensor Immersion Well UG Spring UG Cap n/a In/Out Header Flange Kit Flange Gasket Pressure Switch Tube Assy. Pilot Pilot Pilot Generator Pilot Orifice Pilot Orifice Pilot Tube Pilot Tube High Tension Wire n/a Drain Valve Flue Collector Refractory Stock Kit Drafthood Kit Jacket Top Knobstop Thermostat Knob N/A Transformer Gas Valaves Thermostat Control Toggle Switch Ignition Control Pressure Switch