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Worcester Greenstar 25Si Condensing Combi Gas Boiler


  • Reference: PWGS25SI
  • Brand: Worcester
  • Manufacturer Reference: 7716130139
  • Delivery: Approx 4 Working Days
  • Condition: New
  • Guarantee: 5 Year


£981.31 inc VAT
£1993.51 SAVE: £1,012.20



Code Description Inc. VAT Excl. VAT
PWGS25SI - NATURAL GAS - Worcester Greenstar 25Si Gas Boiler £981.31 £817.76
PWGS25SIP - LPG - Worcester Greenstar 25Si Gas Boiler £1,033.13 £860.94

100mmDiameterHorizontal Flue Accessories

Worcester 100mm Telescopic Horiz Flue Kit

£85.96 (£71.63 exc. VAT)
Worcester 60/100mm 1 Meter Flue Extension

£47.28 (£39.40 exc. VAT)

100mm Diameter Vertical Flue Accessories

Worcester Greenstar HE Ii Vertical Flue Kit

£117.48 (£97.90 exc. VAT)
Worcester Greenstar HE Ii Vertical Flue Adaptor

£42.98 (£35.82 exc. VAT)

100mm Diameter Flue Bends

Worcester 60/100mm 45 Degree Bend X2

£68.76 (£57.30 exc. VAT)
Worcester 60/100mm 90 Degree Bend

£37.25 (£31.04 exc. VAT)

Plume Managment

Worcester Plume Management Kit

£70.20 (£58.50 exc. VAT)
Worcester 1 Meter Plume Extension Kit

£20.06 (£16.72 exc. VAT)
Worcester 90 Degree Plume Elbow

£28.66 (£23.88 exc. VAT)
Worcester 45 Degree Plume Elbow X2

£22.92 (£19.10 exc. VAT)

125mmDiameterHorizontal Flue Accessories

Worcester Greenstar HE Flue Kit 125mm

£120.04 (£100.03 exc. VAT)
Worcester Greenstar HE 1 Meter Flue Extension 125mm

£46.56 (£38.80 exc. VAT)

125mm Diameter Vertical Flue Accessories

Worcester Greenstar HE Vertical Flue Kit 125mm

£159.02 (£132.52 exc. VAT)
Worcester Greenstar HE 1 Meter Flue Extension 125mm

£46.56 (£38.80 exc. VAT)
Worcester Greenstar Vertical Flue Adaptor 125mm

£42.98 (£35.82 exc. VAT)

125mm Diameter Flue Bends

Worcester Greenstar HE 45 Degree Elbow 125mm

£33.06 (£27.55 exc. VAT)
Worcester Greenstar HE 90 Degree Elbow 125mm

£33.06 (£27.55 exc. VAT)

Filling Link

Worcester Filling Link Junior and Si Ii

£17.20 (£14.33 exc. VAT)

Filling Loops & Flashing Kits


Programmers And Timers

Worcester MT10 Mechanical Time Switch Cdi/Si/I Jun

£54.44 (£45.37 exc. VAT)
Worcester MT10 Radio Frequency Mechanical Thermostat Cdi/Si/I Jun

£181.94 (£151.62 exc. VAT)
Worcester DT20 Twin Channel Digital Progammer

£75.94 (£63.28 exc. VAT)
Worcester DT10Radio Frequency Digital Thermostat

£193.40 (£161.17 exc. VAT)
Worcester DT10Radio Frequency Digital Thermostat Optimiser

£216.32 (£180.27 exc. VAT)
Worcester DT20 Radio Frequency Digital Radio Frequency Thermostat

£186.24 (£155.20 exc. VAT)

High Temperature Silicone


Smoke Alarms & Carbon Monoxide Alarms



Higher efficiency and highly cost effective. Up to an incredible 97% of the gas consumed by a new Greenstar Si condensing combi boiler is converted into heat for the heating and/or hot water system. Other types of boiler achieve around 80% efficiency. Therefore, compared with a new conventional combi boiler, a Greenstar Si can cut heating and hot water bills by between 15-20% - and itís up to 30% cheaper to run than an older boiler.
Dimensions (mm): (H)710 x (W)400 x (D)330

   C/ H OUTPUT
24Kw (84,000btu's)
   DHW @ 35°
10.2l/min
   SEDBUK BAND A  


With this boiler, for a standard installation, you will require a standard horizontal flue kit and twin channel digital programmer. We have pre-checked these for you for your ease of ordering. Untick if not required and make the selection that you need.






The following link contains further information about this product
Further Information Further Information
Worcester Greenstar 25Si Condensing Combi Gas Boiler

See below other products in the same range...


Worcester Greenstar 30Si Condensing Combi Gas Boiler
Worcester Greenstar 30Si Condensing Combi Gas Boiler
Reference: PWGS30SI
Manufacturer Reference: 7716130140
Delivery: Approx 4 Working Days
Guarantee: 5 Year

RRP: £2229.28
Our Price: £1097.36
Saving: £1,131.92
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