Area required for installation and absorber area for Redsun Solar Water Heater.
| Capacity in Liters Per Day (LPD) | Area in North-South direction in Meters | Area in East-West direction in Meters | No. of hot water Users | Absorber area in Square Meter |
| 100 | 1.9 | 1.0 | 2 | 1.64 |
| 150 | 1.9 | 1.5 | 3 | 2.46 |
| 200 | 1.9 | 1.8 | 4 | 3.28 |
| 250 | 1.9 | 2.2 | 5 | 4.10 |
| 300 | 1.9 | 2.7 | 6 | 4.92 |
| 400 | 2.2 | 3.0 | 8 | 6.12 |
| 500 Manifold | 3.5 | 4.2 | 10 | 8.2 |
| 750 Manifold | 4.2 | 4.2 | 15 | 9.83 |