| EKRUCBL1C | EKRUCBL5A | EKRUCBL2 | EKRUCBL6 | EKRUCBL5 | EKRUCBL7 | EKRUCBL1 | EKRUCBL3 | EKRUCBL4 | EKRUCBL2A | EKRUCBL1A | EKRUCBL3A | EKRUCBL4A | EKRUCBL6A | EKRUCBL7A | EKRUCBL2C | EKRUCBL4C | EKRUCBL5C | EKRUCBL3C | EKRUCBL6C | EKRUCBL7C | EKRUCBL8C | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Control systems | Class of temperature control | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | VI | |
| Contribution to seasonal space heating efficiency | % | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | 4.0 | |