SEDBUK (Seasonal Efficiency of Domestic Boilers in the UK) Rating
What is SEDBUK?
The Seasonal Efficiency of Domestic Boilers in the UK rating scheme was developed in conjunction with boiler manufacturers and the government and provides a fair comparison of average boiler efficiency.
The model was developed to be a a more accurate method than laboratory tests alone as the theoretical data from test on 20 boilers in the labs was compared against field trials in 99 homes over a 3 year period.
A clear rating system is now applied to all boilers from A-G, A being the best and most efficient. If you want to find out how efficient your boiler is try our boiler efficiency lookup.