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.

  • 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

Greenstar i Greenstar i
Greenstar i Greenstar i
Greenstar i
Download ErP Data Sheet

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

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