Worcester Bosch Greenstar 25i

Type Combi boiler
Fuel Gas
Efficiency Rating A
Standard Warranty 5 years
Weight 31.7kg
Width x Height x Depth 400mm x 710mm x 330mm
Max kW Output 25kw
Flow rate 9l/min


The Worcester Bosch Greenstar 25i combi boiler is designed to provide homeowners with a compact, easy-to-use, energy-efficient heating solution. A part of one of the brand’s most popular ranges, this combi boiler has a variety of key features and additions to help you heat your home effectively and efficiently.


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Product description

The Greenstar 25i combi boiler could be a great choice for smaller homes with 1-2 bedrooms, up to 10 radiators and 1 bathroom. If you’re looking for a boiler that’s designed to be energy-efficient and reliable, the Greenstar 25i combi could be an ideal option for you.

A-rated for efficiency, this boiler is manufactured to provide homes with effective central heating without using excessive fuel. Consequently, installing one of these boilers could reduce your energy bills by potentially lowering your household’s amount of fuel wastage. The combi boiler’s compact dimensions make it a potentially suitable fit for most cupboard spaces, and its user-friendly controls are designed to make setting your heating to your needs a quick and easy task.


Ratings & Reviews

Worcester Bosch’s Greenstar 25i combi boiler has been recognised within the industry for its superb performance and abilities on a number of occasions. Ratings it has received include:

  • 5 star efficiency rating
  • 5 star brand reliability
  • 5 star brand customer score
  • 5 star engineer recommendation
  • Its range has been awarded a Which? best buy on numerous occasions

*The above information was sourced from Which?


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Similar Alternative Models

Here at HomeServe, we supply a range of boilers that are all A-rated and designed to provide you with central heating that matches your requirements. As well as the Greenstar 25i model, the following similar boilers could be suitable:

1. Ideal Logic+ Combi Boiler 24kW

  • Compact - designed to be fit into cupboard spacing
  • Large digital display
  • Energy Saving Trust endorsed

2. Worcester Bosch 30i Combi

  • Same dimensions and features as the 25i, just a higher output to potentially suit slightly larger homes with higher heating and hot-water demands.
  • Countless winner of Which? Best Buy award
  • Wide selection of controls for greater comfort and economy

3. Greenstar 25Si Compact

  • User-friendly display
  • Frost protection
  • Compact dimensions


If you think your household could benefit from installing a Greenstar 25i combi boiler, contact us today and we could provide you with the assistance you need to move forward with your new boiler installation.


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*5% online discount is available to domestic gas and LPG customers who receive an online quote for all boiler brands. £50 additional discount available on all like-for-like system swaps excluding Ideal Logic HE24 and HE30 boilers & Ideal Logic HO12 & HO15 boilers and an additional £100 discount is available on conventional to combi, and combi to conventional boiler swaps. Online discounted price is only available for the duration of the 14-day quote validity which starts from the day the quote was given. HomeServe include a filter as part of your quote as this is highly recommended by the boiler manufacturer as a key component in maintaining boiler health, functionality and may potentially be looked upon favourably by manufacturers when assessing warranty work. This filter can be removed at the customer’s request. Quote also includes a Honeywell CM727 programmable thermostat for all combi boiler installations as this is a legal requirement as part of the Boiler + legislation introduced 6th April 2018, and cannot be removed from the installation unless; it is replaced with an alternative smart thermostat; or another energy saving measure as listed in the Boiler + legislation or if an smart thermostat already exists within the property. This offer cannot be used in conjunction with any other offers. HomeServe have the right to withdraw or change the offer at any time. Online discount is automatically applied when the customer gets a quote using the online quote system at www.homeserveboilers.com and as long as the customer meets all the above criteria.


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