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.
Features & Benefits
Wall mounting jig providing pre-plumbing and rear piping as standard
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Low lift weight
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Single panel front for ease of removal
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Central heating flow temperatures can be adjusted using simple up/down button
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Plug & play optional Worcester controls available*
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Fan can be removed with just one screw and the expansion tank is now inside the boiler
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Large siphon inside - eliminates risk of condensate pipe freezing †
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Achieves an A+ ErP efficiency rating for heating when installed with a Wave smart internet connected control (Excludes 9kW variant)
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Commissioning information for easier completion of the Benchmark checklist
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Homeowner service reminder
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Scan and register the boiler using our free MyWorcester App
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Technical details
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 metre1
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