| | Pilot Gas System | | |
| W0030600 | Pilot Assy (Nat.) | | |
| W0039600 | Pilot Assy (LP) | | |
| | Main Gas System | | |
| L0056500 | Burner w/Pilot Bracket | | |
| L0052500 | Burner, Main | | |
| L0055900 | Burner/Air Shutter | | |
| V0077400 | Gas Valve,HW VR8304 (Nat.) | | |
| V2002000 | Gas Valve,HW VR8300 (Nat.) | | |
| V0077500 | Gas Valve,HW VR8304 (LP) | | |
| V2002100 | Gas Valve,HW VR8300 (LP) | | |
| L0032200 | Gas Orifice(Nat. 0-2000ft) | | |
| L0032900 | Gas Orifice(LP 0-5000ft) | | |
| L0052601 | Gas Manifold | | |
| | Electrical System | | |
| E0088400 | Relay, DPNO | | |
| E0086100 | Transformer 115/24V(40VA) | | |
| E2102800 | Ignition Control | | |
| E0098700 | Limit Switch | | |
| | Two-Stage Operating Control | | |
| 20406501 | Control Panel Wiring Harness | | |
| 20036700 | Power Venter Jumper | | |
| E0098500 | Terminal Strip | | |
| 10449514 | Hi-Tension Lead | | |
| E0121000 | Blocked Vent Safety Switch | | |
| E2103200 | Roll-out Safety Switch | | |
| E2043600 | Fuse, 2 amp | | |
| | Water System | | |
| 11046001 | Heat Exchanger | | |
| A0000100 | Temperature/Pressure Gauge | | |
| A0069000 | Pressure Relief Valve, 30PSI | | |
| E2058300 | Well, Immersion | | |
| P0066600 | Drain Valve 1/2" NPT | | |
| | Jacket and Fire Box Components | | |
| 11020101 | Draft Diverter | | |
| 11020201 | Rear Panel | | |
| 11019301 | Jacket | | |
| 11019401 | Top | | |
| 11047603 | Gap Closure | | |
| 20034901 | Flue Collector | | |
| 10535900 | Access Panel HX, (L&R) | | |
| 20086800 | Base, Control Box | | |
| 20086800 | Cover, Control Box | | |
| 10500601 | Burner Cover | | |
| 10485301 | Heat Exchanger Baffle | | |
| 10469501 | Tile Cover | | |
| T0022001 | Refractory, Front | | |
| T0021701 | Refractory, Rear | | |
| T0027300 | Insulation, Fiberglass | | |
| 10467101 | Base Assembly | | |
| 10466701 | Combustible Base | | |
| | Vent Damper Components | | |
| | Automatic Vent Damper | | |
| E2071501 | Assy., Effikal PC | | |
| E0099100 | Damper Connection Harness | | |
