# Commission Regulation (EU) No 813/2013 of 2 August 2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for space heaters and combination heaters (Text with EEA relevance), Division (29)

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

‘reference annual heating demand’ (QH ) means the reference heating demand for a designated heating season, to be used as the basis for calculating SCOP or SPER and calculated as the product of the design load for heating and the annual equivalent active mode hours, expressed in kWh;

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Source: https://www.legislation.gov.uk/eur/2013/813/annex/I/division/3/division/29 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-813/annex-I/division-3/division-29
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.