Window Swamp Cooler Updated Jun 2026

| Outdoor RH (%) | Temp drop (°C) | Efficiency (%) | Water use (L/h) | EER (Btu/Wh) | |----------------|----------------|----------------|----------------|----------------| | 15 | 11.8 | 78 | 3.5 | 42 | | 30 | 9.5 | 68 | 2.9 | 38 | | 50 | 4.2 | 35 | 1.5 | 22 | | 60+ | <2 | <20 | 0.8 | 10 |