Complaint
| Steam engine type | Gas steam generator | Resistance type of steam generator | Coal-fired steam generator | Jonson electromagnetic steam generator |
| Heating medium | The fuel gas | Heating wire | Coal-burning | Electromagnetic induction |
| Thermal energy utilization | 85% | 88% | 75% | 96% |
| need someone on duty | Need someone to replace gas | Unattended | Need someone to burn coal | Fully automatic machine |
| Temperature control accuracy (ºC) | ±8 | ±6 | ±15 | ±3 |
| heating rate | slow | Faster | slow | fast |
| working environment | clean | clean | Dirty, disorderly | clean |
| Production danger | Complicated piping, risk of air leakage | Risk of electric leakage | The danger of high temperature and heavy pollution | Water and electricity separation, never leak electricity |
| Operational performance | complex | simple | complex | simple |
| rated power | Rated current | Rated steam temperature | Rated steam pressure | Evaporation | Input voltage | Steam outlet diameter | The caliber of the safety valve | Inlet caliber | Dimensions, length * width * height |
| KW | A | ºC | Mpa | Kg/h | V/Hz | / | / | / | mm |
| 8 | 36 | 165 | 0.7 | 12 | 220V/50Hz | 4 points | 4 points | 4 points | 370*900*520 |
| 12KW | 18 | 165 | 0.7 | 17 | 380V/50Hz | 4 points | 4 points | 4 points | 370*900*520 |
| 15KW | 22 | 165 | 0.7 | 22 | 380V/50Hz | 4 points | 4 points | 4 points | 370*900*520 |
