# Commission Delegated Regulation (EU) 2015/1187 of 27 April 2015 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to energy labelling of solid fuel boilers and packages of a solid fuel boiler, supplementary heaters, temperature controls and solar devices (Text with EEA relevance), Division 3: General conditions for the seasonal space heating energy efficiency of solid fuel boilers

Extent: E+W+S+N.I.

(a) The useful efficiency values ηn , ηp and the useful heat output values Pn , Pp shall be measured, as appropriate. For solid fuel cogeneration boilers the electrical efficiency value ηel,n is also measured.
(b) The seasonal space heating energy efficiency ηs shall be calculated as the seasonal space heating energy efficiency in active mode ηson , corrected by contributions accounting for temperature controls, auxiliary electricity consumption, and, for solid fuel cogeneration boilers, by adding the electrical efficiency multiplied by a conversion coefficient CC of 2,5;
(c) The consumption of electricity shall be multiplied by a conversion coefficient CC of 2,5.

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Source: https://www.legislation.gov.uk/eur/2015/1187/annex/VIII/division/3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2015-1187/annex-VIII/division-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.