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 4.8 stars

1,932 reviews

 4.8 stars

1,932 reviews

Worcester Bosch Greenstar 25Si Compact Combi Gas Boiler

Worcester Bosch Greenstar 25Si Compact Combi Gas Boiler Boiler
Typical Price (inc VAT)
£1,075
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)
£300
Total Cost
£1,875 - £2,375
Make Worcester Bosch
Model Greenstar 25Si Compact Combi Gas Boiler
Is Condensing Condensing
Efficiency Rating 94%
Band Rating A Rated
LPG Compatible Yes
Standard Warranty Up to 10 Years
Central Heating Max. Output 24 kW
Mounting Wall mounted
Flow Rate 10.2 l/min
Typical Price (inc VAT) £1,075
Typical installation Cost (inc VAT)* £500 - £1000
Sundries (Filter, Flue, etc) £300
Total Cost £1,875 - £2,375
ERP Rating A HEAT A WATER
Hot Water Max. Output 25 kW

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

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4.7/5 out of 26,479 reviews

1,8 million quotes provided in 10 years

Product Description

The Worcester Bosch Greenstar 25Si Compact is an efficient gas boiler designed for wall-mounted installation in properties with a single bathroom.

How efficient is the Greenstar 25Si Compact?

A seasonal space heating efficiency rating of 94% and ErP A-rating makes this a highly efficient boiler that could help to lower your heating bills.

Is the output rating suitable for my home?

As a combi boiler, the Greenstar 25Si has a central heating output of 24 kW and domestic hot water output of 25 kW. As a result, it's well suited to properties with up to 10 radiators and 1 bathroom.

Are any other options available in the Greenstar Si Compact range?

Should you need a higher domestic hot water output to meet your needs then the 30Si has a 30 kW output rating.

Is a combi boiler suitable for my home?

The Greenstar 25Si Compact is the perfect heating system for properties with 1 bathroom. As a combi, they're ideal for properties with limited space as there's no need for any tanks or cylinders.

How long is the warranty period?

After the installation of a Greenstar 25Si Compact, you will be covered by Worcester Bosch for a period of up to 10 years.

What are the key features of the Greenstar 25Si Compact?

Key features of this compact heating system include boiler frost protection, user-friendly controls and a low energy pump to reduce electricity consumption.

How big is the Greenstar 25Si Compact?

Measurements of only 690 x 390 x 280mm (HxWxD) make this a very compact boiler that can be installed within a kitchen cupboard.

Get your best deal

Quickly compare 3 FREE quotes

  • Quotes from local engineers
  • Get quotes today, installed tomorrow
  • Finance options available
  • Save up to £500 on installation
Get Quotes Now It only takes 30 seconds
0330 808 0405
Call us to get quotes

We will get you the best deal!

0330 808 0405
4.7/5 out of 26,479 reviews

1,8 million quotes provided in 10 years

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