| Unit of measurement | KOMFORT D6B 250 L E | |
| Minimum supply voltage | V | 220 |
| Maximum supply voltage | V | 220 |
| Power supply frequency | Hz | 50 |
| Power of electrical preheater | W | 1000 |
| Maximum airflow | m³/h | 250 |
| Heat recovery efficiency, max | % | 77 |
| Heat exchanger type | - | Counter flow |
| Weight | kg | 42 |