Worcester Bosch Combi Greenstar 4000

Worcester Bosch 4000 Boiler

The Greenstar 4000 is ideal for small to medium-sized homes with one bathroom, it includes a modern new style, and easy to use complete colour text display as well as it’s quiet as well. The Greenstar 4000 has a wide power range to satisfy all of your home heating as well as hot water needs, whilst doing so efficiently.

* Up to a 10 Year warranty, conditions apply.

Our entire gas central heating boiler variety can run on a 20% hydrogen blend – so you can be positive it will certainly run on gas for its life time.


  • Wide power range helps to reduce gas consumption and lower energy bills
  • Innovative ‘Quick Tap’ water saving function helps you reduce water waste
  • The modern new design comes with an easy to use colour display
  • Operates extremely well in low water pressure areas, ensuring powerful and warm showers
  • One of the quietest combi boilers available, making it easy to live with
  • Features wireless connectivity with the Bosch EasyControl
  • Instantaneous hot water, always available
  • Suitable for small to medium homes
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Gas Assist Worcester Bosch 4000 install offer

Worcester Bosch 4000

Worcester Bosch filter

Worcester Bosch Wireless thermostat

WB1/WB3 Flush

£2,100 Fully Installed / from £15pm

Contact the Gas Assist Boilers team on 01202 138758 or complete our online quote form below and have your energy efficient new boiler fitted tomorrow.