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Worcester Greenstar 24i System LPG - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can check your boilers rating by selecting it's make and model below. Ratings are based on the SEDBUK Rating which is an indicator of its efficiency when used within an average domestic household, it's a great benchmark for comparing new boilers and also assessing whether your current boiler would be better off being replaced due to low efficiencies.

For new boiler installations call British Gas Boilers on 0800 327 7119 for a no-obligation quote, alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Worcester Greenstar 24i System Efficiency

SAP seasonal efficiency92.0%
Rating bandBand A


ManufacturerWorcester Boilers
ModelGreenstar 24i System
Fuel TypeLPG
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)24 - 24
Boiler ID41-311-70
Manufactured From/To2005 - current


The Worcester Greenstar 24i System is an 'A' rated boiler which has an excellent efficiency of 92.0%.

The Greenstar 24i System is a Condensing Conventional boiler with a maximum power output of 24kw that uses LPG as its fuel source.

As this boiler is 'A' rated it will provide efficient heating and subsequently reduce fuel bills and carbon dioxide emissions.

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(Condensing LPG Conventional)

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