SEDBUK
SEDBUK is the Seasonal Efficiency of Domestic Boilers in the UK, the methodology for determining boiler efficiency defined in the Standard Assessment Procedure, Appendix D.
It was introduced to provide a standardised way of comparing different models, helping homeowners and professionals choose the most efficient options. The system calculates efficiency based on various performance factors, including heat loss, fuel type, and operational conditions.
Originally, SEDBUK ratings were given as letter grades, ranging from A for the most efficient boilers to G for the least efficient. However, this was later replaced by a percentage-based system to provide a more precise efficiency measurement. A higher percentage indicates better energy performance, meaning less wasted fuel and lower energy bills.
Understanding these ratings can help in assessing whether an existing boiler should be upgraded to a more efficient model.
[edit] Related articles on Designing Buildings
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
ECA welcomes plans to strengthen subcontractor quality control.
Combining mid-career qualifications with experience broadens career opportunities.
Why being a mentor can help your career.
Channel 4 broadcaster to host 125th anniversary ceremony.
Listed structures on the rail network
Heritage interests and operational requirements must be balanced.
Historic England publishes research into embodied carbon when retrofitting traditional buildings.
New Prime Minister delivers on ECA call for cut in electricity costs.
CIOB reacts to the announcement of Andy Burnham as Prime Minister.
Heritage and conservation science workforce survey - Have your say.
England's Suburbs 1820-2020. Book review.
New, more proportionate and targeted approach for higher-risk building assessments.
Government brings British Steel into public ownership.