Boilers: ErP and SEDBUK energy ratings
SEDBUK boiler energy ratings were ‘replaced’ by ‘ERP’ ratings in 2015. However, Which? points out that:
“Nearly all modern gas condensing boilers available in the UK get an A-rating on this label, so it can be more useful to use the SEDBUK 2009 efficiency rating if you are interested in the minutiae of how one boiler compares to another.”
“There are currently two different types of SEDBUK ratings, called SAP scores, that you should look out for when you are buying a boiler.
SAP winter efficiency – this is the measured by an independent laboratory and is the measured energy efficiency of the boiler including space heating and hot water; It’s calculated to an industry standard called SAP 2009. There are only marginal differences between modern condensing boilers on this measure.
SAP hot water efficiency – the hot water efficiency figure is hot efficient the boiler is at producing hot water for your taps. There tends to be a much bigger difference between boilers on this measure, and so if you are keen to get the most efficient boiler possible, it should be this figure that you hone in on.” (Which? article)
NB: SAP = Standard Assessment Procedure
We only install high rated boilers
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