Worcester Bosch Greenstar 25Si Compact (Combi, LPG)

Designed for small spaces

Your fixed price with installation




Per month 9.9% APR

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  • Gas Safe installation
  • FREE Honeywell Smart Thermostat RRP £199.99
  • FREE Worcester Bosch magnetic filter worth £154.99
  • FREE chemical system cleanse
  • 10 year warranty
  • Flue - an essential piece of kit worth up to £100
  • Fitting pack
  • All the right safety attachments

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Worcester Bosch, Combi, LPG, Greenstar 25Si Compact




  • Height 690mm
  • Depth 280mm
  • Width 390mm

Hot water flow rate

  • 10.2 @ 35°c ∆T

Central heating output (kW)

  • 24

Hot water output (kW)

  • 25


10 Year Warranty

Worcester Bosch, Combi, LPG, Greenstar 25Si Compact highlights

  • Fits perfectly in a kitchen cupboard
  • Which? Best Buy for the last 7 years
  • Powered by LPG (Liquid Petroleum Gas)
  • 10 year Worcester Bosch warranty
  • Central heating output 24kW, Hot water 25 kW
Free filter

We protect your boiler for free too

We put a FREE filter in every BOXT, worth up to £130 RRP. It filters nasties from the system water to protect the boiler and keeps it in top condition for longer.

Award winning know-how

Worcester Bosch boilers are award winning – they've claimed a Which? Best Buy rosette 7 years running. And with a warrant to supply boilers for the Queen's Sandringham Estate, they keep the royals warm and cosy through Christmas.