Boiler Efficiency Ratings


Compare new boilers and assess whether your current boiler would be better off being replaced

Our boiler efficiency tables provided by SEDBUK (the seasonal efficiency of domestic boilers in the UK) provide a guide of how effective your boiler is at turning fuel into heat.

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 0333 230 5216 for a no-obligation quote, alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

VIEWING DETAILS ABOUT

Boulter

Centurion 3.5 Efficiency

SAP seasonal efficiency

77.0%

Rating band

Band E

Specification

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

Summary

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.

SEDBUK Rating

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

Results ordered by efficiency. Some models may be obsolete.

Boulter Centurion 2.5

76.6% Efficient

Most Efficient Combi Gas Boilers

Alpha CD50

91.2% Efficient