| Water shirt volume, L | 1 150 |
| Fuel type | pellets, wood chips, agricultural waste |
| Complete set | Retra-4M PLUS copper, PST / NPS torch, conveyor bunker nutritious |
| Heat exchanger area, m2 | 38,1 |
| Upper combustion chamber size, mm (LxWxH | 1250 х1300 х630 |
| Loading hatch neck size, mm (WxH) | 530 х 455 |
| 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 | 450х260 |
| Connection dimensions to the heating system | DN125 |
| Connecting size of the safety valve | 2х2" |
| 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 | 60 |
| Power consumption, W (220 V, 50 Hz), Max | 2 040 |
| Chimney pipe diameter, mm/height, m, not less | 400/18 |
| Boiler weight (without water), kg | 4 250 |
| Upper combustion chamber volume, M3 | 1,23 |
| Overall dimensions of the boiler with Hopper Assembly, mm (LxWxH) | 2950 х3320 х2370 |
| Production period, days | ≥ 90 |
| Producer | РЕТРА |
| Power capacity, kW | 450 |
| Heating area, m2 (at a height of up to 3.5 m) | 4500 |
| Hopper capacity, M3 | 3 |
| Serial number of the boiler | 4М BIO |
| Country of Origin | Ukraine |
| Water shirt volume, L | 1 150 |
| Fuel type | pellets, wood chips, agricultural waste |
| Complete set | Retra-4M PLUS copper, PST / NPS torch, conveyor bunker nutritious |
| Heat exchanger area, m2 | 38,1 |
| Upper combustion chamber size, mm (LxWxH | 1250 х1300 х630 |
| Loading hatch neck size, mm (WxH) | 530 х 455 |
| 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 | 450х260 |
| Connection dimensions to the heating system | DN125 |
| Connecting size of the safety valve | 2х2" |
| 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 | 60 |
| Power consumption, W (220 V, 50 Hz), Max | 2 040 |
| Chimney pipe diameter, mm/height, m, not less | 400/18 |
| Boiler weight (without water), kg | 4 250 |
| Upper combustion chamber volume, M3 | 1,23 |
| Overall dimensions of the boiler with Hopper Assembly, mm (LxWxH) | 2950 х3320 х2370 |
| Production period, days | ≥ 90 |
| Producer | РЕТРА |
| Power capacity, kW | 450 |
| Heating area, m2 (at a height of up to 3.5 m) | 4500 |
| Hopper capacity, M3 | 3 |
| Serial number of the boiler | 4М BIO |
| Country of Origin | Ukraine |
