What Is A Combi Boiler
What Is A Regular Boiler
What Is A System Boiler
Worcester CDi Combi Boilers
Worcester Si Combi Boilers
Worcester i Junior combi
Worcester Highflow 440
Worcester CDi Conventional
Worcester Greenstar 25HE Combi
Worcester Ri Boilers
Greenstar 28HE System
Greenstar 29HE Conventional
Greenstar 30HE Plus Combi
Greenstar 35HE Plus Combi
Greenstar 40HE Conventional
Greenstar 40HE Plus Combi
Worcester CDi System
Worcester I System boilers
Worcester Greenskies Solar Technology
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Worcester Greenskies Solar Components
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Flue Options i and si range

Worcester-Bosch combination gas boilers

CDi Combination Boilers Range



Worcester-Bosch CDi Combination Boilers


The Greenstar CDi boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they’re up to 30% cheaper to run than an older boiler.

Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere.

  • SEDBUK* A-rated efficiency - environmentally friendly
  • 27kW, 30kW, 37kW and 42kW DHW outputs - a boiler for all property types
  • Hot water and central heating temperature controls - consumer comfort and flexibility
  • Mechanical, digital and radio frequency (RF) control options all available
  • Optimising 7-day programmable room thermostat available
  • 24 hour programmable room thermostat available
  • Holiday function – frost protection and economic to run while you are away from home
  • Keep hot facility - instantly available hot water
  • Wall mounting frame housing pipes behind it - no exposed pipework
  • Fully condensing in both central heating (CH) and domestic hot water (DHW) modes
  • Low NOx and CO2 emissions - environmentally friendly
  • 2 year** warranty with 10 year** warranty on primary heat exchanger
CDi Combi Boilers:
Greenstar 42CDi   £1522.89 inc VAT  
Greenstar 37CDi   £1282.48 inc VAT  
Grennstar 30CDi   £1131.26 inc VAT  
Greenstar 27CDi   £1019.78 inc VAT  
STD Horizontal Flue   £69.84 inc VAT  
Vertical Flue   £95.76 inc VAT  
Mechanical Timer   £41.68 inc VAT  
Digital Timer   £55.20 inc VAT  









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