{
  "url": "https://openlegislation.uk/eu-regulation-2013-812/annex-II/division-2",
  "json_url": "https://openlegislation.uk/eu-regulation-2013-812/annex-II/division-2.json",
  "legislation": "eur/2013/812",
  "legislation_title": "Commission Delegated Regulation (EU) No 812/2013 of 18 February 2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2013-812",
  "path": "annex/II/division/2",
  "kind": "division",
  "number": "2",
  "heading": "ENERGY EFFICIENCY CLASSES OF HOT WATER STORAGE TANKS",
  "text": "The energy efficiency class of a hot water storage tank shall be determined on the basis of its standing loss as set out in Table 2.\nTable 2\nEnergy efficiency classes of hot water storage tanks\nEnergy efficiency class\nStanding loss S in Watts, with storage volume V in litres\nA+\nS < 5,5 + 3,16 × V 0,4\nA\n5,5 + 3,16 × V 0,4 ≤ S < 8,5 + 4,25 × V 0,4\nB\n8,5 + 4,25 × V 0,4 ≤ S < 12 + 5,93 × V 0,4\nC\n12 + 5,93 × V 0,4 ≤ S < 16,66 + 8,33 × V 0,4\nD\n16,66 + 8,33 × V 0,4 ≤ S < 21 + 10,33 × V 0,4\nE\n21 + 10,33 × V 0,4 ≤ S < 26 + 13,66 × V 0,4\nF\n26 + 13,66 × V 0,4 ≤ S < 31 + 16,66 × V 0,4\nG\nS > 31 + 16,66 × V 0,4",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2013/812/annex/II/division/2",
    "retrieved_at": "2026-11-01T14:48:27.204975+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}