Greenstar i System (9kW to 24kW) Greenstar i System (9kW to 24kW)
Greenstar i System (9kW to 24kW) Greenstar i System (9kW to 24kW)
Download ErP Data Sheet

Greenstar i System (9kW to 24kW) overview

Our Greenstar i System boiler is our most popular system boiler that is suitable for small to medium sized homes.

This boiler can also be used with our high efficiency Greenstore cylinders for a complete Worcester system solution for your home.

Greenstar gas-fired system boilers must be fitted with the optional Internal Diverter Valve if any Worcester control is desired.

Download our easy guide, which covers everything you need to know about the Greenstar i System (9kW to 24kW)

 

Request a quote Find an installer

Main features

  • Simple boiler controls with clear information display
  • Suitable for homes where the heating system includes a hot water storage cylinder
  • Choice of controls enables greater comfort and economy*
  • Can be used with Greenskies solar panels for energy and cost savings
  • Low energy pump reduces electrical usage
  • Large Condensesure style siphon built into the boiler - eliminates frost risk †
How can I purchase a Worcester product?

Greenstar 9i System LPG

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (LPG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
9.2
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 9i System

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)
9.2
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 12i System LPG

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (LPG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
12.2
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 12i System

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)
12.2
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 15i System

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)
15.3
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 15i System LPG

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (LPG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
15.3
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 18i System LPG

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (LPG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
18.4
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 18i System

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)
18.4
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 21i System LPG

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (LPG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
21.6
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 21i System

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)
21.6
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 24i System LPG

ErP Efficiency Rating
A
ErP Data Sheet
ErP Data Sheet
Fuel Type
Gas (LPG)
Control Options
EasyControl Compatible 1
Solar Compatible
Central heating output (kW)
24.6
Dimensions (mm) height x width x depth
710 x 400 x 330

Greenstar 24i System

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)
24.6
Dimensions (mm) height x width x depth
710 x 400 x 330

*With installation of optional built-in diverter valve

† 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 metre

1

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