Greenstar i boiler supplied and fitted in Malvern by Jolliffe Plumbing
Perfect for small to medium sized homes with one bathroom, the boilers' new features have been designed based on installer feedback. These boilers now include increased outputs, higher hot water flow rates of up to 12.3 litres/min, a user friendly control panel and a larger condensate siphon that eliminates the risk of condensate freezing.
- Wall mounting jig providing pre-plumbing and rear piping as standard
- Low lift weight
- Single panel front for ease of removal
- Central heating flow and hot water temperatures can be adjusted using simple up/down buttons
- Plug & play optional Worcester controls available
- Fan can be removed with just one screw and the expansion tank is now inside the boiler
- Large siphon inside - eliminates risk of condensate pipe freezing
- Clear text description for quick boiler diagnostics
- Simple weather compensation option
- Simple boiler controls with clear information display
- Commissioning information for easier completion of the Benchmark checklist
- Homeowner service reminder
- Achieves an A+ ErP package efficiency rating for heating when installed with a smart internet connected Bosch EasyControl
Control Options



- COMBI
- GAS
- LPG Model Available
Product images and details supplied by and are property of Worcester Bosch
Technical Data
Greenstar i Combi models: | Greenstar 25i | Greenstar 30i |
---|---|---|
DHW flow rate @ 35°C rise | 10.2 l/min | 12.3 l/min |
Output to central heating | 7.2-24kW | 7.2-24kW |
Weight – lift | 31.7kg | 31.7kg |
ErP Seasonal Space Heating energy efficiency class | A / 93% | A / 93% |
ErP Water Heating energy efficiency class | A | A |
2009 SEDBUK efficiency – natural gas | A / 89.6% | A / 89.6% |
SAP comparative hot water efficiency | 73.2% | 72.1% |
NOx classification with low NOx code plug | 39mg/kWh | 39mg/kWh |
NOx classifications | 49mg/kWh | 49mg/kWh |
Greenstar i System models: | 9i System | 12i System | 15i System | 18i System | 21i System | 24i System |
---|---|---|---|---|---|---|
Part Number | 7 733 600 011 | 7 733 600 010 | 7 733 600 009 | 7 733 600 008 | 7 733 600 007 | 7 733 600 006 |
Output to central heating | 3.1-9.2kW | 3.1-12.2kW | 4.6-15.3kW | 4.6-18.4kW | 7.2-21.6 kW | 7.2-24.6kW |
Weight – lift | 30.9kg | 30.9kg | 30.9kg | 30.9kg | 30.9kg | 30.9kg |
ErP Seasonal Space Heating energy efficiency class | A / 93% | A / 93% | A / 93% | A / 93% | A / 93% | A / 93% |
2009 SEDBUK efficiency – natural gas | A / 89.8% | A / 89.8% | A / 89.7% | A / 89.7% | A / 89.7% | A / 89.7% |
NOx classifications | 36mg/kWh | 45mg/kWh | 42mg/kWh | 50mg/kWh | 49mg/kWh | 49mg/kWh |