| Ventilation Type | Address Count | |
|---|---|---|
| Aereco DCV | 34 | |
| Continuous mechanical ventilation (CMEV) | 535 | |
| Demand controlled mechanical ventilation (DCV) | 306 | |
| Extract Ventilation | 79 | |
| Mechanical ventilation with heat recovery | 301 | |
| Natural | 7 | |
| Natural ventilation | 1026 | |
| Other | 20 | |
| Total | 8 |