| 107 | 65104220 | BURNER | | |
| 110 | 65104549 | ELECTRODE (IGNITION/DETECTION) | | |
| 113 | 65104246 | MAIN EXCHANGER | | |
| 135 | 65104500 | THERMOSTAT | | |
| 206 | 65104452 | FAN | | |
| 216 | 65104672 | AIR PRESSURE SWITCH | | |
| 327 | 65104261 | EXPANSION VESSEL | | |
| 537 | 61312668 | PRESSURE RELIEF VALVE | | |
| 576 | 990686 | TEMPERATURE PROBE + CLIP | | |
| 589 | 65104333 | SECONDARY EXCHANGER | | |
| 601 | 61302483 | MOTOR - THREE-WAY VALVE | | |
| 603 | 65104314 | 3-WAY SPRING KIT (D.H.W.) | | |
| 606 | 65104323 | SENSOR (REED) | | |
| 619 | 65104227 | PUMP | | |
| 630 | 65104317 | 3-WAY SPRING KIT (D.H.W.) | | |
| 632 | 990686 | TEMPERATURE PROBE + CLIP | | |
| 638 | 65104703 | AUTO AIR VENT WITH O-RING | | |
| 701 | 65104234 | PRESSURE GAUGE | | |
| 705 | 65105068 | P.C.B. (MAIN) | | |
| 706 | 65104448 | PRINTED CIRCUIT BOARD (DISPLAY) | | |
