Worcester Bosch Greenstar 42CDi Classic (Combi, LPG)

Our most powerful wall-mounted boiler

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 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 42CDi Classic




  • Height 760mm
  • Depth 360mm
  • Width 440mm

Hot water flow rate

  • 17.4 @ 35°c ∆T

Central heating output (kW)

  • 30

Hot water output (kW)

  • 42


10 Year Warranty

Worcester Bosch, Combi, LPG, Greenstar 42CDi Classic highlights

  • Top-of-the-range performance
  • Enough power for a big family home
  • FREE Honeywell Smart Thermostat RRP £199.99
  • FREE filter worth up to £130
  • FREE system cleanse
  • Gas Safe Installation
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.