Model | Company | BWCC175M | BWCC220M | BWCC275M | BWCC320M |
| Rated heat input | KW | 175 | 220 | 275 | 320 |
| Maximum gas flow at rated power | m³/h | 17.8 | 22.4 | 28.1 | 32.7 |
| Maximum load 80°C/60°C heat output | KW | 171.5 | 215.6 | 269.5 | 313.6 |
| Maximum load 50°C/30°C thermal efficiency | KW | 189 | 237.6 | 297 | 345.6 |
| Maximum load 80°C/60°C thermal efficiency | % | 98 | 98 | 98 | 98 |
| Maximum load 50°C/30°C thermal efficiency | % | 103 | 103 | 103 | 103 |
| 30% load 50°C/30°C thermal efficiency | % | 108 | 108 | 108 | 108 |
| Highest Outflow water temperature | ℃ | 90 | 90 | 90 | 90 |
| Lowest/highest water pressure | bar | 0/6 | 0/6 | 0/6 | 0/6 |
| Hot water supply capacity（ΔT=20℃） | m³/h | 7.5 | 9.5 | 11.8 | 13.7 |
| Flue gas temperature (maximum load 80°C/60°C) | ℃ | <70 | <70 | <70 | <70 |
| Flue gas temperature (maximum load 50°C/30°C) | ℃ | <45 | <45 | <45 | <45 |
| NOX emissions | mg/m³ | <30 | <30 | <30 | <30 |
| Maximum condensed water discharge | L/h | 14.8 | 18.7 | 23.4 | 27.2 |
| Condensed water PH | 4.8 | 4.8 | 4.8 | 4.8 | |
| Flue interface size | mm | 200 | 200 | 200 | 200 |
| Gas interface size | R1" | R1" | R1" | R1" | |
| Inlet and outlet ports | R2" | R2" | R2" | R2" | |
| Gas type | Natural gas | 12T | 12T | 12T | 12T |
| Gas pressure | Pa | 2000 | 2000 | 2000 | 2000 |
| Power Supply | 220V/50Hz | 220V/50Hz | 220V/50Hz | 220V/50Hz | |
| Noise | db | <50 | <50 | <50 | <50 |
| Max Power consumption | w | 1000 | 1000 | 1000 | 1000 |
| Width | mm | 740 | 740 | 740 | 740 |
| Depth | mm | 1350 | 1350 | 1600 | 1600 |
| Height | mm | 1350 | 1350 | 1350 | 1350 |
| Weight | kg | 320 | 340 | 380 | 400 |
| Reference heating area | ㎡ | 2900 | 3600 | 4500 | 5300 |