KWM-S, KWM-SG type fine coal-fired boilers with a controller and blower
- operating 24 hours
The use of fine coal provides efficiency up to 86%
The use of fine coal provides efficiency up to 86%
After firing up a boiler there is no need of permanent operation - 24h combustion
These boilers are characterized by slight influence on the environmental pollution. The maintenance costs are low due to complete combustion of fine coal and combustible gases
Combustion process is regulated by a microprocessor controller
Safe maintenance
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KWM-S (SG) type boilers are designed for heating up water in the central heating system to a temperature not exceeding 90°C at the boiler outlet. They may be applied for heating residential buildings, commercial and production facilities, workshops, farms, greenhouses, schools, etc.
Currently these boilers are the most modern and innovative type of solid fuel boilers produced in Poland, and are incomparable with any other boilers in the same range. KWM-S type boilers have an ecological certificate and were granted declaration of conformity in accordance with energy efficiency requirements. Emission and energy tests were conducted by:
- Institute of Heating and Sanitary Technology in £ód¼, Poland
- Institute for Chemical Processing of Coal in Zabrze, Poland
They have a registered utility model certificate No. 57550 and are legally protected.
Characteristic features of KWM-SG type boilers.
- Easy maintenance, especially the process of cleaning,
- Increased life-span ,
- Due to its height, less area is occupied by the boiler in the boiler room.
KWM-S and KWM-SG type boiler specifications
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| Detailed list | Unit of measure- ment | Boiler size |
| Rated power | kW |
19 | 25 | 38 | 50 | 62 | 75 | 95 | 125 | 150 |
200 | 250 | 300 | 350 |
Average operating power in a 24h working cycle | kW |
9 | 12 | 19 | 25 | 31 | 37 | 47 | 62 | 75 |
100 | 125 | 150 | 175 |
| Boiler's heating surface | m² |
2 | 3 | 4 | 5 | 6 | 7,5 | 10,5 | 12,5 | 14 |
17 | 21 | 25 | 30 |
Approximate heated area in a 24h working cycle | m² |
do
100 | 100 - 150 | 150 - 200 | 200 - 250 | 250 - 300 | 300 - 380 | 380 - 530 |
530 - 630 | 630 - 750 |
750 - 1000 | 1000 - 1300 |
1300 - 1600 | 1600 - 1900 |
| Combustion time | h |
8-24 |
| Thermal efficiency |
Reached | % |
82 | 82 | 83 | 83 | 83 | 83 | 83 | 86 | 84 |
84 | 83 | 83 | 83 |
| Required |
75 | 75,5 | 76 | 77 | 77 | 77,5 | 78 | 78,5 | 79 |
79 | 79,5 | 80 | 80 |
| Max. water temperature | °C |
90 |
| Max. working pressure | bar |
1,5 |
2,5 |
| Required flue gas draft | Pa |
25-30 |
45-50 |
| Required stack height | m |
5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 9,5 |
11 | 12 | 13 | 13 |
| Required stack hole cross-section | cm² |
220 | 230 | 270 | 300 | 300 | 350 | 500 | 650 | 750 |
950 | 950 | 1300 | 1950 |
| Fuel | |
Hard coal - fine coal MI grade type 32.1 class 25/12 according to PN-82/G-97001-3 standard |
| Diameters of supply connector pipe and return connector pipe ø | mm |
60x4 | 60x4 | 60x4 | 60x4 | 76x4 | 76x4 | 89x4,5 | 89x4,5 | 89x4,5 | 108x4 |
108x4 | 133x4 | 133x4 |
| Dimensions of flue cross-section | mm |
125 | 130 | 160 | 160 | 180 | 180 | 220 | 230 | 250 |
280 | 280 | 320 | 400 |
| Power consumption of the fan 230 V | W |
60 | 60 | 60 | 60 | 60 | 2x60 | 2x60 | 370 | 370 |
370 | 550 | 550 | 550 |
| Technical specifications of the KWM-S type boiler |
| Single fuel charge | kg |
35 | 45 | 60 | 75 | 95 | 120 | 165 | 195 | 285 |
360 | 430 | 565 | 725 |
| Boiler's weight | kg |
327 | 410 | 490 | 580 | 665 | 800 | 1200 | 1400 | 1500 |
1750 | 2150 | 2760 | 3220 |
| Boiler water capacity | dm³ |
112 | 125 | 170 | 215 | 255 | 315 | 450 | 530 | 560 |
590 | 650 | 780 | 930 |
| Dimensions | Length | Exchanger |
mm |
858 | 950 | 1010 | 1070 | 1120 | 1170 | 1378 | 1552 | 1672 |
1762 | 1812 | 1958 | 2098 |
| ca³kowita |
mm |
1135 | 1265 | 1360 | 1440 | 1510 | 1560 | 1810 | 2380 | 2270 |
2410 | 2460 | 2610 | 2850 |
| Width | Exchanger |
mm |
438 | 510 | 560 | 630 | 690 | 780 | 854 | 872 | 924 |
1054 | 1164 | 1341 | 1526 |
| Overall |
mm |
538 | 610 | 660 | 730 | 790 | 880 | 954 | 952 | 1044 |
1174 | 1284 | 1461 | 1646 |
| Height without the fan | Exchanger |
mm |
1040 | 1095 | 1210 | 1215 | 1290 | 1390 | 1540 | 1466 | 1500 |
1550 | 1650 | 1750 | 1780 |
| Overall |
mm |
1150 | 1205 | 1320 | 1325 | 1400 | 1500 | 1650 | 1550 | 1605 |
1655 | 1755 | 1855 | 1885 |
| Technical specifications of the KWM-SG type boiler |
| Single fuel charge | kg |
33 | 46 | 54 | 84 | 100 | 130 | 220 |
| Boiler's weight | kg |
296 | 365 | 420 | 500 | 555 | 670 | 880 |
| Boiler water capacity | dm³ |
102 | 125 | 148 | 182 | 210 | 245 | 370 |
| Dimensions | Length | Exchanger |
mm |
548 | 598 | 648 | 728 | 778 | 828 | 968 |
| Overall |
mm |
950 | 1000 | 1060 | 1150 | 1200 | 1250 | 1430 |
| Width | Exchanger |
mm |
448 | 508 | 578 | 628 | 698 | 778 | 898 |
| Overall |
mm |
510 | 570 | 640 | 690 | 750 | 850 | 1020 |
| Height without the fan | Exchanger |
mm |
1456 | 1550 | 1550 | 1585 | 1635 | 1685 | 1825 |
| Overall |
mm |
1690 | 1785 | 1785 | 1820 | 1870 | 1920 | 2060 |
Boilers with the average operating power over 350 kW are made to order.
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