| Water shirt volume, L | 3 800 |
| Fuel type | wood, briquettes, coal |
| Complete set | controller, air fans (primary and secondary), prep. valve, pressure gauge, requires cast iron grate |
| Heat exchanger area, m2 | 151,1 |
| Upper combustion chamber size, mm (LxWxH | 3100х2085х770 |
| Overall dimensions of the boiler, mm (LxWxH) | 6100х 2440х3080 |
| Loading hatch neck size, mm (WxH) | 2х430х640 |
| 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 | 1010х410 |
| Connection dimensions to the heating system | DN200 |
| Connecting size of the safety valve | 2хDN100 |
| Inner wall thickness of the heat exchanger, mm | 8 |
| Power consumption, W (220 V, 50 Hz), Max | 7 470 |
| Chimney pipe diameter, mm/height, m, not less | 900/30 |
| Boiler weight (without water), kg | 12 500 |
| Upper combustion chamber volume, M3 | 5,9 |
| Production period, days | ≥ 90 |
| Producer | РЕТРА |
| Power capacity, kW | 2 500 |
| Heating area, m2 (at a height of up to 3.5 m) | 25000 |
| Serial number of the boiler | 4М PLUS |
| Country of Origin | Ukraine |
| Water shirt volume, L | 3 800 |
| Fuel type | wood, briquettes, coal |
| Complete set | controller, air fans (primary and secondary), prep. valve, pressure gauge, requires cast iron grate |
| Heat exchanger area, m2 | 151,1 |
| Upper combustion chamber size, mm (LxWxH | 3100х2085х770 |
| Overall dimensions of the boiler, mm (LxWxH) | 6100х 2440х3080 |
| Loading hatch neck size, mm (WxH) | 2х430х640 |
| 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 | 1010х410 |
| Connection dimensions to the heating system | DN200 |
| Connecting size of the safety valve | 2хDN100 |
| Inner wall thickness of the heat exchanger, mm | 8 |
| Power consumption, W (220 V, 50 Hz), Max | 7 470 |
| Chimney pipe diameter, mm/height, m, not less | 900/30 |
| Boiler weight (without water), kg | 12 500 |
| Upper combustion chamber volume, M3 | 5,9 |
| Production period, days | ≥ 90 |
| Producer | РЕТРА |
| Power capacity, kW | 2 500 |
| Heating area, m2 (at a height of up to 3.5 m) | 25000 |
| Serial number of the boiler | 4М PLUS |
| Country of Origin | Ukraine |
