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Boulter Centurion 3.5 Gas - 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.

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Boulter Centurion 3.5 Efficiency

SAP seasonal efficiency77.0%
Rating bandBand E


ManufacturerBoulter Boilers
ModelCenturion 3.5
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)22 - 22
Boiler IDGC 47 130 03
Manufactured From/To1997 - obsolete


The Boulter Centurion 3.5 is an 'E' rated boiler with an efficiency of 77.0%.

The Centurion 3.5 is a Non-Condensing Combi boiler with a maximum power output of 22kw that uses Gas as its fuel source.

Being a 'E' rated boiler it would be worthwhile replacing it with a higher efficiency 'A' rated boiler.

Similar Boulter Boilers to the Centurion 3.5
(Non-Condensing Gas Combi)

Results ordered by efficiency. Some models may be obsolete.

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