| 226 | 333 929 | Domestic Diaphragm | | |
| 557 | 333 832 | Flow switch diaphragm | | |
| 597 | xxx xxx | Solenoid | | |
| 615 | xxx xxx | Servo Pressure Regulator | | |
| 3207 | 333 943 | 3-way diverting valve | | |
| 3208 | 333 944 | Heating Manifold | | |
| 3409 | 333 978 | High Limit Thermostat | | |
| 4095 | 333 720 | Hot Water Outlet | | |
| 4250 | 333 772 | Safety valve | | |
| 4254 | 333 722 | Automatic Air vent | | |
| 4302 | 333 773 | Singl micro switch (flow switch) | | |
| 4492 | 333 733 | Expansion Vessel | | |
| 4518 | 333 885 | Domestic Expansion Vessel | | |
| 4540 | 333 779 | Mains stop cock | | |
| 4541 | 333 780 | Gas Service tap | | |
| 4549 | 333 955 | Domestic Heat Exchanger | | |
| 4631 | 333 899 | Over-run Thermostat | | |
| 4962 | 333 903 | Domestic Distribution Manifold | | |
| 5317 | 301 017 | Main Burner | | |
| 5356 | 301 023 | Main Heat Exchanger | | |
| 5441 | 301 027 | Safety Thermostat | | |
| 5591 | xxx xxx | Mode Selector Switch | | |
| 5733 | xxx xxx | Pressure Differential Switch | | |
| 5739 | xxx xxx | Fan | | |
| 5852 | xxx xxx | Electronic lgnition Control Box | | |
| 5757 | xxx xxx | Control Knob | | |
| 6090 | 384 288 | Grundfos Circulating Pump 15-50 | | |
| 6679 | xxx xxx | Compensator N.G. | | |
| 6681 | xxx xxx | Printed Circuit Board | | |
| 6693 | xxx xxx | Thermostat Potentiometer Board | | |
| 6704 | xxx xxx | Pressure Sensor | | |
| 6705 | xxx xxx | L.E.D. Printed Circuit Board | | |
| 7085 | xxx xxx | Printed Circuit Board | | |
