| Rated heating power | 20kW | 21kW | 23kW |
| Water flow(Ltr/min) △T=25K | 10L | 11L | 12L |
| Heat exchanger | Oxygen free cooper | ||
| Burner | Water cooling burner import from Europe | ||
| Valve | Proportion valve | ||
| Heat efficiency | ≥89% | ||
| Water pressure range (bar) | 0.025-0.8 Mpa | ||
| Unit dimensions W × H × D (mm) | 580 × 370 × 180 | ||
| Package dimensions W × H × D (mm) | 755 × 445 × 285 | ||
| Loading quantity 40HQ | 715 pcs | ||
