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Worcester Bosch Compact Boiler

Worcester Bosch Greenstar 4000 12kW System

Your fixed price including installation


Powers up to 6 radiators + a medium cylinder

  • Worcester Bosch’s latest range of boilers
  • Backed by a 10 year guarantee
  • Excellent for smaller homes with 1 bathroom
  • Worcester Bosch’s quietest system boiler
  • Central heating output 12kW
  • FREE Hive active smart control

Boiler Details

MeasurementsW 400mm, D 310mm, H 724mm
Guarantee10 Years
Boiler typeSystem
Fuel typeNatural Gas
Central heating output12kW
Efficiency ratingA rated

Award-winning Worcester Bosch boilers

Worcester Bosch’s boilers have been awarded the Which? Best Buy rosette 7 years running, so you don’t need to worry about their quality and reliability.

Worcester Bosch even have a warrant to supply boilers for the King’s Sandringham Estate. They’re fit to keep royalty warm this Christmas.

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