Greenstar Ri (12kW to 24kW) Greenstar Ri (12kW to 24kW)
Greenstar Ri (12kW to 24kW) Greenstar Ri (12kW to 24kW)
Download ErP Data Sheet

Greenstar Ri (12kW to 24kW) overview

Our Greenstar Ri boiler is a compact, wall mounted boiler that is perfect for small and medium sized homes. It is also perfect for replacing a boiler in an existing system.

Small enough to be installed in a standard kitchen cupboard, the boiler can be used with our range of high efficiency Greenstore cylinders for a complete Worcester system solution for your home.

† 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 Ri (9kW to 24kW)

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

Main features

  • Fits in a standard kitchen cupboard
  • Simple boiler control knob
  • Suitable for homes where the heating system includes a hot water storage cylinder
  • Frost protection is also included, reducing frost risk if installed in a garage or loft
  • Can be used with Greenskies solar panels for energy and cost savings
How can I purchase a Worcester product?

Greenstar 12Ri

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
12
Dimensions (mm) height x width x depth
600 x 390 x 270

Greenstar 15Ri

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
15
Dimensions (mm) height x width x depth
600 x 390 x 270

Greenstar 21Ri

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (NG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
21
Dimensions (mm) height x width x depth
600 x 390 x 270

*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

1 The EasyControl adaptor is required for the Bosch EasyControl to work with our Greenstar regular boilers

Want to learn more?

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