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Worcester Bosch Greenstar 12i System ErP review

£835.00 Typical price

Brand score %

Key features
  • Gas
  • System

The Greenstar i System ErP series of condensing gas boilers comprises a range of six system boilers suitable for small to medium homes, and are an updated version of Worcester Bosch's popular i Junior range. They're compact enough to be fitted inside a kitchen cupboard, and are compatible with Worcester's programmers and Greenskies solar panels. Our full review will help you decide whether the Greenstar 12i System ErP will provide the heating power you need and will also tell you whether Worcester Bosch boilers are reliable.

Included in our expert review
  • Pros and cons
  • Heating engineer views
  • What type of home is this boiler suitable for?
  • Will this boiler produce enough hot water for my home?
  • How efficient is this boiler?
  • What controls does this boiler have?
  • Is this boiler smart compatible?
  • What is the warranty with this boiler?
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Technical specifications

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Brand scores

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

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Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

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