Glowworm Control Knobs
The control knob sits on one of the spindles located on the front of the appliance and allows you to manually control certain aspects of the boilers functionality. Some boilers enable you to change temperature and some even allow you to change the current function. This means the user can have the boiler produce hot water without the central heating being turned on and vice versa.
![GLOWWORM 2000801872 KNOB](/userfiles/images/products/1337179.jpg)
GLOWWORM 2000801872 KNOB
Part No: 1337179 / MPN: 2000801872
![GLOWWORM 801758 CONTROL KNOB ASSEMBLY](/userfiles/images/products/1333251.jpg)
GLOWWORM 801758 CONTROL KNOB ASSEMBLY
Part No: 1333251 / MPN: 801758
![GLOWWORM 0020084807 CONTROL KNOB](/userfiles/images/products/1340001.jpg)
GLOWWORM 0020084807 CONTROL KNOB
Part No: 1340001 / MPN: 0020084807
![GLOWWORM 800275 CONTROL KNOB & CLIP ECONPF](/userfiles/images/products/1332803.jpg)
GLOWWORM 800275 CONTROL KNOB & CLIP ECONPF
Part No: 1332803 / MPN: 800275
![GLOWWORM S204698 CONTROL KNOB EXTENSION](/userfiles/images/products/1333933.jpg)
GLOWWORM S204698 CONTROL KNOB EXTENSION
Part No: 1333933 / MPN: S204698
![GLOWWORM S204697 CONTROL KNOB SOFT TOUCH](/userfiles/images/products/1333932.jpg)
GLOWWORM S204697 CONTROL KNOB SOFT TOUCH
Part No: 1333932 / MPN: S204697
GLOWWORM 2000800928 CONTROL KNOB ASSEMBLY
Part No: 1330739 / MPN: 2000800928
![GLOWWORM 416144 CONTROL KNOB ASSEMBLY](/userfiles/images/products/1331851.jpg)
GLOWWORM 416144 CONTROL KNOB ASSEMBLY
Part No: 1331851 / MPN: 416144
![GLOWWORM 432902 SUMMER/WINTER KNOB ASSY](/userfiles/images/products/1332223.jpg)
GLOWWORM 432902 SUMMER/WINTER KNOB ASSY
Part No: 1332223 / MPN: 432902
![GLOWWORM S205146 CONTROL KNOB](/userfiles/images/products/1334018.jpg)
GLOWWORM S205146 CONTROL KNOB
Part No: 1334018 / MPN: S205146
![GLOWWORM S426526 CONTROL KNOB ASSY](/userfiles/images/products/1335508.jpg)
GLOWWORM S426526 CONTROL KNOB ASSY
Part No: 1335508 / MPN: S426526
![GLOWWORM 2000800400 CONTROL KNOB C/W CLIP ULTBF](/userfiles/images/products/1330349.jpg)
GLOWWORM 2000800400 CONTROL KNOB C/W CLIP ULTBF
Part No: 1330349 / MPN: 2000800400
GLOWWORM 0020125461 BUTTON RESET
Part No: 1340410 / MPN: 0020125461
GLOWWORM 0020125462 BUTTON ON/OFF
Part No: 1340412 / MPN: 0020125462