Greenstar i overview
The Greenstar i is our most popular boiler. It’s perfect for small to medium sized homes with one bathroom and comes with a user friendly control that allows you to easily adjust your heating and hot water to meet your exact requirements.
* Up to a 10 year guarantee when installed by a Worcester Accredited Installer. Terms and conditions apply.
Download our easy guide, which covers everything you need to know about the Greenstar i.
Our entire gas boiler range is able to run on a 20% hydrogen blend - so you can be confident it will run on gas for it’s lifetime. Learn more
- Simple boiler controls with clear information display
- Condensate discharge resilient to freezing up to -15’C* **
- Wide choice of controls enables greater comfort and economy
- Low energy pump reduces electrical usage
- Hot water instantly heated from cold mains
- Achieves an A+ ErP package efficiency rating for heating when installed with a smart internet connected Bosch EasyControl
This efficiency rating icon is for a product within a range of products. View all products in this range
Technical Details
| Greenstar 25i | Greenstar 30i | |
|---|---|---|
| ErP Efficiency Rating |
A
A
|
A
A
|
| ErP Data Sheet | ErP Data Sheet | ErP Data Sheet |
| LPG model available | ||
| Control Options | ||
| EasyControl Compatible 1 | ||
| Solar Compatible | ||
| Central heating output (kW) | 24 | 24 |
| Dimensions (mm) height x width x depth | 710 x 400 x 330 | 710 x 400 x 330 |
| Hot water flow rate 40°c ∆T (litres per minute) | 9l/min | 10.8l/min |
*The Condensesure Siphon has been proven to be effective at preventing frozen condensate at -15°C for a sustained period of 48 hours. 32mm pipework must be used and should not exceed 3 metres in length
1dependant on model
Related documents
- Greenstar i Combi ErP Operating Instructions Manufactured after 02.03.15
Have you considered...
Find a local installer
Each heating system needs custom designing. Find and contact a Worcester Accredited Installer in your area to book a home visit and get a free quote.
Find the right boiler for you
Our Find a New Boiler tool is the easiest way to find and compare Worcester products which are suitable for your home and heating requirements and only takes a few minutes.
Find the right boiler for you