Worcester Greenstar 25Si Compact LPG Combi Boiler 7733600051

Item code
Lead time
2-3 working days
Delivery cost
Worcester Greenstar 25Si Compact LPG Combi Boiler 7733600051


Show VAT?

£940.00 Excl VAT £1,128.00 Inc VAT

Product details

With a central heating output of 24kW, the 25Si Compact LPG is an ideal hot water and central heating solution for smaller properties with no access to a mains gas supply (i.e. apartments and small to medium sized homes with a single bathroom).

The biggest innovation surrounding the new Si Compact range is the size of the boilers themselves. With dimensions 690mm (h) x 390mm (w) x 280mm (d), the 25Si Compact is the smallest combi boiler to have ever been produced by Worcester Bosch. It’s so small that it can be installed within most kitchen cupboard spaces, making it fit seamlessly into your home and easy to keep our of sight.

Despite the compact dimensions, the 25Si LPG gives you fantastic performance levels and the reliability you would come to expect from Worcester themselves. With its SEDBUK A-Rating, the 25Si LPG is able to achieve efficiency levels of over 90%, helping you to operate your boiler with reduced annual energy bills.

**Please note this boiler is an LPG version. Please note that this package includes the boiler only, it does not include a flue.**

Does not include filling link


Worcester 25Si compact lpg

  • LPG Combination Boiler (Heating + Hot Water)
  • A-rated efficiency
  • Compact dimensions
  • Jig & 7 pre-plumb connections make it possible to pre-plumb without the boiler being mounted on the wall, allowing quick installation
  • Built in LCD display for current operation status & fault diagnosis
  • Lightweight (32.9kg)
  • EMS-BUS compatibility for use with Worcester Intelligent Controls series
  • ErP Comliant
  • 5 Year warranty on Greenstar Gas Boilers as standard (terms and conditions apply)


Are you changing from electricity or oil to LPG? 

Calor Gas offer free installation of an over-ground LPG tank to customers who are converting to LPG for the first time.*  Find out more from Calor's website as well as getting your personalised LPG price quotation online now. Terms and conditions apply.


Show VAT?

£940.00 Excl VAT £1,128.00 Inc VAT


  • Lead Time
    2-3 working days
  • Boiler Type
  • Depth
  • DHW Flowrate Range
    < 12
  • DHW Flow Rate
  • Fuel Type
  • GTIN
  • Heating Output Range
    24 - 29
  • Height (mm)
  • KW Output
  • Manufacturer Part No:
  • Output BTU/H
  • Warranty
    5 Years
  • Width (mm)