# Commission Delegated Regulation (EU) No 1254/2014 of 11 July 2014 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to energy labelling of residential ventilation units (Text with EEA relevance), Annex II: Specific energy consumption classes

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

Specific energy consumption (SEC) classes of residential ventilation units calculated for average climate:
Table 1
Classification from 1 January 2016
SEC class
SEC in kWh/a.m2
A+ (most efficient)
SEC < – 42
A
– 42 ≤ SEC < – 34
B
– 34 ≤ SEC < – 26
C
– 26 ≤ SEC < – 23
D
– 23 ≤ SEC < – 20
E
– 20 ≤ SEC < – 10
F
– 10 ≤ SEC < 0
G (least efficient)
0 ≤ SEC

---
Source: https://www.legislation.gov.uk/eur/2014/1254/annex/II (the official version)
Page: https://openlegislation.uk/eu-regulation-2014-1254/annex-II
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.