| 9 | 171 414 / E83-619 | Sightglass assembly kit | | |
| 12 | 171 961 / E90-891 | Main burner | | |
| 13 | 171 431 / E90-893 | Main burner injector | | |
| 14 | 171 436 / E83-628 | Pilot burner injector: Propane (stamped 20/23P) | | |
| 15 | 171 440 / E83-631 | Pilot burner head with injector Propane | | |
| 17 | 172 006 / E83-634 | Gas control valve | | |
| 18 | 171 442 / E83-635 | Ignition electrode complete with lead and backnut 410 mm long | | |
| 19 | 171 894 / E83-637 | Controls box assembly, including PCB | | |
| 23 | 173 799 / H20-882 | PCB25E | | |
| 24 | 171 454 / E83-653 | Pressure switch assembly | | |
| 30 | 171 461 / E83-665 | Fan assembly | | |
| 35a | 173 582 / H08-992 | Boiler casing assembly complete | | |
| 35b | 173 583 / H08-993 | Boiler casing assembly complete | | |
| 37a | 173 586 / H08-998 | Controls casing door complete | | |
| 37b | 173 587 / H08-999 | Controls casing door complete | | |
| 39a | 171 479 / E85-313 | Casing seal kit | | |
| 39b | 173 588 / H08-736 | Casing seal kit | | |
| 45 | 171 950 / E83-682 | Overheat thermostat | | |
| 59 | 173 353 / E97-310 | Limit thermostat | | |
