Greenstar i overview

Our Greenstar i combi boiler is perfect for small to medium sized homes with one bathroom.

New to 2015, and replacing a well-established award-winning boiler that has been installed in over 1 million homes across the UK, our latest model now has a user friendly control that allows you to adjust your heating and hot water to meet your exact requirements.

  • Simple boiler controls with clear information display
  • Zero risk of condensate pipe freezing in severe weather* **
  • Wide choice of controls enables greater comfort and economy
  • Low energy pump reduces electrical usage
  • Instantaneous hot water, always available
  • Achieves an A+ ErP package efficiency rating for heating when installed with a Wave smart internet connected control

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
Wave Compatible
Solar Compatible
Control Options
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 35°c ∆T (litres per minute) 10.2l/min 12.3l/min
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

Related documents

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