| Water shirt volume, L | 700 |
| Fuel type | pellets, wood chips, agricultural waste |
| Complete set | Retra-4M PLUS copper, PST / NPS torch, conveyor bunker nutritious |
| Heat exchanger area, m2 | 21,5 |
| Upper combustion chamber size, mm (LxWxH | 1000 х1000 х760 |
| Loading hatch neck size, mm (WxH) | 530 х 360 |
| Boiler outlet water temperature, Max, °C | 95 |
| Water temperature at the boiler inlet, not less than, °C | 55 |
| Temperature of combustion products, Max, °C | 110-160 |
| Chimney outlet, mm | 300х260 |
| Connection dimensions to the heating system | DN100 |
| Connecting size of the safety valve | 1 1/2" |
| Inner wall thickness of the heat exchanger, mm | 6 |
| Working pressure of the heat carrier, MPA, min / max | 0,15/0,3 |
| Vacuum behind the boiler, Pa, Max | 50 |
| Power consumption, W (220 V, 50 Hz), Max | 1 275 |
| Chimney pipe diameter, mm/height, m, not less | 350/15 |
| Boiler weight (without water), kg | 2 590 |
| Upper combustion chamber volume, M3 | 0,76 |
| Overall dimensions of the boiler with Hopper Assembly, mm (LxWxH) | 2590 х3040 х2150 |
| Production period, days | ≥ 90 |
| Producer | РЕТРА |
| Power capacity, kW | 250 |
| Heating area, m2 (at a height of up to 3.5 m) | 2500 |
| Hopper capacity, M3 | 2 |
| Serial number of the boiler | 4М BIO |
| Country of Origin | Ukraine |
| Water shirt volume, L | 700 |
| Fuel type | pellets, wood chips, agricultural waste |
| Complete set | Retra-4M PLUS copper, PST / NPS torch, conveyor bunker nutritious |
| Heat exchanger area, m2 | 21,5 |
| Upper combustion chamber size, mm (LxWxH | 1000 х1000 х760 |
| Loading hatch neck size, mm (WxH) | 530 х 360 |
| Boiler outlet water temperature, Max, °C | 95 |
| Water temperature at the boiler inlet, not less than, °C | 55 |
| Temperature of combustion products, Max, °C | 110-160 |
| Chimney outlet, mm | 300х260 |
| Connection dimensions to the heating system | DN100 |
| Connecting size of the safety valve | 1 1/2" |
| Inner wall thickness of the heat exchanger, mm | 6 |
| Working pressure of the heat carrier, MPA, min / max | 0,15/0,3 |
| Vacuum behind the boiler, Pa, Max | 50 |
| Power consumption, W (220 V, 50 Hz), Max | 1 275 |
| Chimney pipe diameter, mm/height, m, not less | 350/15 |
| Boiler weight (without water), kg | 2 590 |
| Upper combustion chamber volume, M3 | 0,76 |
| Overall dimensions of the boiler with Hopper Assembly, mm (LxWxH) | 2590 х3040 х2150 |
| Production period, days | ≥ 90 |
| Producer | РЕТРА |
| Power capacity, kW | 250 |
| Heating area, m2 (at a height of up to 3.5 m) | 2500 |
| Hopper capacity, M3 | 2 |
| Serial number of the boiler | 4М BIO |
| Country of Origin | Ukraine |
