Worcester Bosch is one of the most reliable and trusted boiler manufacturers and have an excellent reputation for manufacturing and engineering, and this hasn’t been lost on their condensing combi boiler range.

The Worcester Greenstar 25i combi boiler

The Greenstar 25i combi is the best boiler for a smaller home of up to 1 to 3 bedrooms and 1 bathroom. This ErP A rated boilers has an efficiency rating of over 93% and has the lowest emissions making this extremely environmentally friendly.

The Greenstar 25i will also benefit you as it is compact and will save you space in the home as it can fit neatly into a kitchen cupboard. The boiler has a keep hot facility to offer you instant hot water and central heating. A digital thermostat is fitted for ease of use helping to keep your bills under control.

Under the flap it offers easy to use controls for your convenience with error codes with simple instructions to get you going again.

  • Central heating output: 24kW
  • Domestic hot water (DHW) Output: 25kW
  • Hot water flow rate: 10.2 litres/minute


You might like to read the following

Best Combi Boiler

Best Boiler Reviews

worcester bosch logo
  • Market leading technology
  • Space saving compact combi boiler
  • ErP rating 93%
  • Very eco friendly
  • Up to 10 years warranty
  • Suits 1 to 2 bedroom home with 1 bathroom
  • Keep warm instant hot water and heating
  • Excellent Which? reviews

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What customers say about Clever Energy Boilers

My wife and I would like to thank you all for the competence and excellent work carried out at our home, from the estimate and the fitter who plumbed in the new boiler, to the electrician who made our programmer work with the boiler, an excellent team of manpower seldom seen with so called professionals.

0/5 (0 Reviews)
Mr & Mrs Sheen, Doncaster

Thanks Tom for all your patience and time you spent answering all my questions and promptly ringing me back each time and thanks to your office staff always polite and helpful, a big thank you to John and Chris for installing the boiler and all the other jobs, both worked efficiently and cleanly, John was very good explaining everything as he went along. 

0/5 (0 Reviews)
Mr Peacock, Holmfirth

I am very happy with the service I received. My new boiler has been installed very quickly and hassle free, I would definitely recommend this service.

0/5 (0 Reviews)
Moyra Thomas, Stockport

Rizwan was a very good engineer he was very clean and made the place spotless after he had gone.

0/5 (0 Reviews)
Mary Jones, Birmingham

Brilliant service from all the team. Thanks. Our old boiler died and from a very reasonable quote to fitting a new one within a couple days. Excellent advice and workmanship too.

0/5 (0 Reviews)
Adrian Charlton, West Yorkshire

My old boiler went kaput, Clever Energy Boilers gave me a great price and fitted my new boiler within 3 days. Very pleased with the work carried out and would not hesitate to recommend to anyone needing a new boiler. A big thank you to both the installation team and the electrical man, both first class.

0/5 (0 Reviews)
Mr Herbert, Yorkshire
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