Select Diagram ... Access Panel, Front Panel And Seal Burner Orifice Spuds - For Higher Elevations (gas Models) Cabinet, Exhaust Duct And Base Cabinet Top And Control Hood Back Panel Cylinder Front Bulkhead, Air Duct And Felt Seal Gas Valve, Igniter And Gas Conversion Kits (gas Models) Graphic Panel, Control Support Panel And Controls - Rear Control (drawing 1 Of 2) Heater Duct Assembly (gas Models) Lead-in Cord Loading Door Motor, Exhaust Fan And Belt Rear Bulkhead, Felt Seal, Cylinder Roller And Terminal Block Wire Harnesses And Wires - Rear Control Models