Worcester Bosch Greenstar System Boiler

Worcester Bosch boiler

The Worcester-Bosch Greenstar 24i System is one of a range of highly energy-efficient A-rated gas boilers.

They are rated very highly by SEDBUK 2009.

Being a system boiler, the Worcester-Bosch Greenstar 24i System requires a hot water storage cylinder; however, it doesn’t require a feed and expansion cistern.

This makes the Greenstar 24i a quick and easy boiler installation as well as being efficient and economical to run.

What do we love about this system boiler?

With the Worcester-Bosch Greenstar 24i, heat from exhaust gases, that would otherwise be lost through the flue, are recycled. This heat is then used as output, powering your domestic hot water and central heating with what otherwise be wasted energy.

This means that the Greenstar 24i is up to 30% cheaper to run than some older boilers.

We rate this boiler lower than the Viessmann because the Viessmann has a much better stainless steel heat exchanger with better reliability than the Worcester Bosch.

The price comes in around £1,050 on average with an installed price being around £2000.

Get an online fixed price in 20 seconds:

Q What kind of fuel does your boiler use?

Mains Gas



Main Features:

  • ERP rating: A HEAT
  • Efficiency Rating: 94%
  • Band Rating: A Rated
  • LPG Compatible: Yes
  • Standard Warranty: 5 Years
  • kW Options: 24.6 kW
  • Mounting: Wall-mounted

Overall, with the price and efficiency, we recommend this boiler in 2nd place to the Viessmann.

After our extensive research, going through customer reviews, looking at our own customer’s experiences, asking our Gas Safe heating engineers about fitting, reliability, etc.

You can be sure that our information is reliable and will give you a fantastic new system boiler.

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