Panel (in/out) Outdoor top assy. Lightback shield (Propane Gas units only) Electronic thermostat (Millivolt models) Panel (return) Thermistor (probe) complete (Millivolt models) Hi-Limit thermostat 150° Heat exchanger (with or without heads) Heat exchanger (with or without heads) Baffle Baffle hold down (2) baffles on 400 Flue collector Flow valve assy. Hi-Limit thermostat 115° Adaptor - bulkhead, 2 in. Pilot tube - Millivolt Burner tray assy. Nat/LP (complete) Burner Pressure switch Combustion chamber assy. (complete) Presslite igniter assy. Tube seal gasket Thermostat knob Switch rocker (single pole & double throw) Door - Millivolt Manifold burner Gas valve Propane/Natural - Millivolt Potentiometer Adaptor - bulkhead ring Main manifold assy. Main header assy. Main manifold bottom Cap, main manifold bottom Washer 3/8" ID 1" OD Bolt, heat exchanger Vent kit assy. (indoor) Vent kit assy. (indoor) Return header Inner Tops Inner Tops Inner Tops Inner Tops Inner Tops Inner Tops Outdoor top assy. Baffle hold down (2) baffles on 400 Flue collector Potentiometer Electronic thermostat (Millivolt models) Door - Millivolt Baffle Combustion chamber assy. (complete) Panel (in/out) Panel (return) Presslite igniter assy. Lightback shield (Propane Gas units only) Burner Cap, main manifold bottom Adaptor - bulkhead, 2 in. Adaptor - bulkhead ring Pressure switch Hi-Limit thermostat 150° Go Back Inner Tops www.parts4heating.com Thermistor (probe) complete (Millivolt models) Hi-Limit thermostat 115° Return header Bolt, heat exchanger Washer 3/8" ID 1" OD Tube seal gasket Flow valve assy. Pilot tube - Millivolt Manifold burner Gas valve Propane/Natural - Millivolt Vent kit assy. (outdoor) Main manifold assy. Main manifold bottom Switch rocker (single pole & double throw) Thermostat knob Vent kit assy. (indoor & outdoor) Vent kit assy. (indoor & outdoor) Vent kit assy. (outdoor) Burner tray assy. Nat/LP (complete)