| Parameter | Typical range | Notes |
|---|
| Sensible effectiveness | 55 – 85 % | Counter-flow plate highest; rotary wheel with purge ~80–90 % |
| Enthalpy (total) effectiveness | 50 – 80 % | Requires membrane / desiccant for moisture transfer |
| Face velocity | 1.5 – 3.0 m/s | Higher → smaller core, higher pressure drop |
| Pressure drop (per side) | 50 – 250 Pa | Depends on core depth & fin density |
| Operating air temp. | −40 to +200 °C | Plastics/SS for corrosive / marine duty |
| Leakage (rotary) | 0.5 – 3 % | Purge sector reduces supply/extract cross-contamination |
| Frost protection | Preheat / bypass / glycol | Required below ~−5 °C exhaust |