The Q-FACTOR - Solar Water Heating Systems
Each system tested by the SABS receives a system rating (Q-factor), which indicates the kilowatt-hours (kWh) of electricity it is expected to save on a typical day (as determined by the SABS test).
The following are the solar water heating systems' Q-Factors.
| SYSTEM | Litre | Q-FACTOR |
| Kwikot SOL-300-IC | 300 | 30.60 |
| KwikSol 200-i x1 | 200 | 18.90 |
| Tasol/Tas20 20 EVT Thermo | 200 | 17.82 |
| Tasol/Kwikhot 16 EVT Thermo | 150 | 18.41 |
| Tasol/Kwikhot 20 EVT Pumped | 200 | 14.71 |