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The Department has not estimated the carbon and energy benefits of A to G labelled circulator pumps in Part L.The benefits are influenced by the actual circulator efficiency and the number of running hours and this would be bespoke to each installation. From 2013, under Regulation 641/2009 the eco-design requirements for glandless standalone circulators, which implements Directive 2005/32/EC, new circulators will have to have an energy efficiency index of not more than 0.27, which is equivalent to an 'A' rating. This reduces to 0.23 from 2015. |