Is my boiler a high efficiency condensing boiler?
Boilers are rated according to their efficiency in converting fuel to heat as a percentage. This rating is called SEDBUK - Seasonal Efficiency of Domestic Boilers in the UK.
SEDBUK ratings are from A to G, A-rated boilers being more than 90% efficient. Only A rated boilers - having efficiencies of over 90% carry the Energy Saving Recommended logo.
Compare the efficiency of different boilers at www.boilers.org.uk
You can also use our Energy Saving Recommended database to find the boiler that's right for you.
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