| 226 | 333 929 | Domestic Diaphragm | | |
| 367 | 333 832 | Domestic Water Flow regulating screw | | |
| 557 | 333 941 | Flow switch diaphragm | | |
| 598 | 333 972 | Servo pressure regulator | | |
| 602 | 333 943 | Soleniod | | |
| 3207 | 333 943 | 3-way diverting valve | | |
| 3208 | 333 944 | Heating Manifold | | |
| 3212 | 333 945 | Boiler thermostat | | |
| 3409 | 333 978 | High Limit Thermostat | | |
| 4095 | 333 720 | Hot Water Outlet | | |
| 4148 | 333 951 | Triple Microswitch | | |
| 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 | | |
| 4962 | 333 903 | Domestic Distribution Manifold | | |
| 4981 | 333 961 | Timed/Summer/Constant Switch | | |
| 5262 | 301 003 | Temperature Gauge | | |
| 5263 | 301 004 | Pressure Gauge | | |
| 5264 | 301 005 | Thermostat knob | | |
| 5284 | 301 009 | On/Off switch | | |
| 5317 | 301 017 | Main Burner | | |
| 5356 | 301 023 | Main Heat Exchanger | | |
| 5394 | 301 025 | Domestic thermostat | | |
| 5634 | 301 029 | Gas valve | | |
| 5637 | 301 032 | Electronic lgnition control | | |
| 5640 | 301 034 | Spark Electrode | | |
| 5641 | 301 035 | Sensing electrode | | |
| 5641 | 301 036 | Printed Circuit board | | |
| 5868 | 301 041 | Modulator coil | | |
| 5911 | 397 751 | Fan | | |
| 5926 | 301 063 | Pressure Differential switch | | |
| 4931 | 333 899 | Fan over-run thermostat | | |
| 6090 | 384 288 | Grundfos circulating pump UPS 15-50 | | |
