Worcester-Bosch 24i and 28i Junior gas boilers

Combination Boilers



Wall hung Junior gas combination boilers






The Greenstar i Junior 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
  • 24kW and 28kW domestic hot water (DHW) outputs
  • Mechanical, digital and radio frequency (RF) control options available
  • Central heating temperature control available
  • 24 hour programmable room thermostat available
  • Compact dimensions – space saving and siting flexibility
  • Keep hot facility - instantly heated hot water
  • Includes wall mounting frame for optional vertical pipework routing- no additional wall spacing frame required
  • Low NOx and CO2 emissions - environmentally friendly
  • 2 year** warranty with 10 year** warranty on primary heat exchanger
i Junior Combi Boilers:
Greenstar 28i Junior      
Greenstar 24i Junior      
STD Horizontal Flue      
Vertical Flue      
Mechanical Timer      
Digital Timer      















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