Annex II Specific energy consumption classes
United Kingdom
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 |