| No. | Technical Specifications | RETRA-3M steel solid-fuel hot-water heating boilers | |||||||||||||||||
| 1 | Nominal capacity, kW | 22 | 32 | 40 | 50 | 65 | 80 | 100 | 150 | 200 | 250 | 300 | 400 | 450 | 500 | 700 | 800 | 1000 | |
| 2 | Heating area (with height to 3,5 m), sq.m | 220 | 320 | 400 | 500 | 650 | 800 | 1000 | 1500 | 2000 | 2500 | 3000 | 4000 | 4500 | 5000 | 7000 | 8000 | 10000 | |
| 3 | Heat-exchanger area (of the convective zone), sq.m | 2,38 | 2,68 | 3,71 | 4,83 | 5,97 | 7,11 | 10,26 | 15,4 | 17,66 | 21,4 | 24,97 | 34,8 | 40,3 | 43 | 52,0 | 61,5 | 74,0 | |
| 4 | Outline dimensions: Length, mm Width, mm Height, mm |
1220 590 870 |
1345 590 905 |
1425 640 965 |
1565 700 1165 |
1700 750 1190 |
1770 770 1260 |
1955 875 1345 |
2150 870 1500 |
2270 954 1530 |
2250 1100 1730 |
2350 1214 1830 |
2524 1438 1850 |
2640 1592 1950 |
2660 1668 2055 |
2800 1720 2300 |
3320 1946 2450 |
3420 2208 2500 |
|
| 5 | Volume of furnace chamber, cub.m | 0,06 | 0,083 | 0,083 | 0,165 | 0,187 | 0,217 | 0,532 | 0,77 | 0,612 | 0,945 | 1,2 | 1,74 | 1,7 | 1,8 | 1,9 | 2,6 | 3,3 | |
| 6 | Volume of water jacket, liter | 91 | 150 | 186 | 240 | 308 | 390 | 500 | 770 | 880 | 1070 | 1250 | 1600 | 2000 | 2150 | 2600 | 2280 | 2880 | |
| 7 | Area of fire grate, sq.m | 0,189 | 0,276 | 0,28 | 0,367 | 0,403 | 0,466 | 0,671 | 0,825 | 0,765 | 0,945 | 1,2 | 1,5 | 1,7 | 1,8 | 1,9 | 2,45 | 3,0 | |
| 8 | Max. water temperature, °C: Inlet Outlet |
95 70 | 95 70 | 95 70 | 95 70 | 95 70 |
95 70 | 95 70 | 95 70 | 95 70 | 95 70 |
95 70 | 95 70 | 95 70 | 95 70 | 95 70 |
95 70 | 95 70 |
|
| 9 | Temperature of waste gases, °C | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | 50-70 | |
| 10 | Operating pressure P, MPa | 0,2 | 0,2 | 0,2 | 0,2 | 0,2 | 0,2 | 0,2 | 0,2 | 0,2 | 0,25 | 0,25 | 0,25 | 0,3 | 0,3 | 0,3 | 0,3 | 0,3 | |
| 11 | Draft required, Pa | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 50 | 50 | 60 | 60 | 60 | 60 | 60 | 70 | 70 | |
| 12 | Max. fuel consumption with nominal capacity, kg/year | Timber | 5 | 6 | 7 | 8 | 9 | 11 | 13 | 16 | 21 | 26 | 34 | 45 | 50 | 55 | 73 | 97 | 126 |
| Coal | 3 | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 16 | 20 | 24 | 32 | 36 | 40 | 52 | 75 | 110 | ||
| 13 | Diameter of connection pipes, mm | 57 | 57 | 57 | 57 | 57 | 57 | 76 | 76 | 108 | 108 | 108 | 133 | 133 | 133 | 159 | 159 | 159 | |
| 14 | Height of chimney (not lower), mm | 6 | 7 | 7 | 7 | 7 | 8 | 15 | 15 | 15 | 15 | 15 | 18 | 18 | 18 | 20 | 20 | 20 | |
| 15 | Sectional area of chimney, sq.cm | 230 | 300 | 300 | 350 | 350 | 350 | 550 | 750 | 950 | 1056 | 1300 | 1950 | 2000 | 2000 | 2400 | 3800 | 4900 | |
| 16 | Boiler weight, kg | 320 | 360 | 400 | 470 | 550 | 620 | 994 | 1250 | 1560 | 2056 | 2300 | 3224 | 3800 | 4400 | 5000 | 6300 | 7000 | |