News, Views & Reviews on Domestic Central Heating, Boiler & Renewable Energy


Get Free, No Obligation Boiler Quotes

Boulter Centurion 2.5 Gas - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can find out the energy efficiency of your boiler by checking its energy rating; you can do this now by selecting the make and model below.

A boiler’s energy rating is an indicator of its efficiency when used within an average domestic household. It's a great benchmark for comparing new boilers and can help you work out how much money you could save on energy bills if you replaced your current boiler with a more efficient model.

For new boiler installations call British Gas Boilers on 0333 230 5216 for a no-obligation quote. Alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Boulter Centurion 2.5 Efficiency

SAP seasonal efficiency76.6%
Rating bandBand E


ManufacturerBoulter Boilers
ModelCenturion 2.5
Fuel TypeGas
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)22 - 22
Boiler IDGC 47 130 03
Manufactured From/To1997 - obsolete


The Boulter Centurion 2.5 is an 'E' rated boiler with an efficiency of 76.6%.

The Centurion 2.5 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 2.5
(Non-Condensing Gas Combi)

Results ordered by efficiency. Some models may be obsolete.

Most Efficient Combi Gas Boilers