Safe shopping by GeoTrustSEDBUK (Seasonal Efficiency of Domestic Boilers in the UK) was developed under the Government's Energy Efficiency Best Practice Programme with the co-operation of boiler manufacturers, and provides a basis for fair comparison of the energy performance of different boilers.
The SEDBUK rating is the average annual efficiency achieved in typical domestic situations, making sensible assumptions about climate, control, pattern of usage and other similar factors. The rating is calculated from laboratory tests together with other important factors such as boiler type, fuel used, ignition type, UK climate, boiler water content and typical domestic usage patterns. For estimating annual fuel running costs SEDBUK is a better guide than laboratory test results alone.
To establish the foundation calculations for SEDBUK test work took place over three years during which a theoretical seasonal efficiency model was developed. Experimental data was obtained from over 20 different boilers, supported by data collected from field trials in 99 homes to support these theoretical assumptions. This allowed fuel usage data (termed 'signature') to be related to efficiency test results supplied by manufacturers.
The boiler's performance is then scored which enables the boiler to be placed in a banding system using a scale from "A" to "G." "A" banded boilers being the most efficient and usually termed 'condensing' boilers.
If you would like to know more about the efficiency of a boiler your thinking about buying then a good place to look is the SEDBUK Website.
The website is independant and lists boilers on there efficiency of using fuel.
The SEDBUK Website has other usefull tools such an annual fuel cost estimator.
We sell most of the boilers listed in the site tables, but we would recomed that you should buy an A Banded boiler or A Ratted with an efficiency of 90% or above.
If you need any more help or advice please call or email
Last Updated: June 16, 2009
