24h, fines-fired furnaces with regulator and blower

KWM-SG boiler

19-150 kW
  • KWM-SG heating furnaces are the new generation of unattended heating furnaces working in twenty-four-hours mode designed for highly efficient combustion of fine coal.
  • Very high power efficiency of this kind of heating furnaces, reaching 86% results in the lowest running expenses. Additional advantage is insignificant destructiveness for natural environment.
  • Employing controller and blower combined with upper combustion and distribution of air stream with use of nozzles makes the process of combustion similar to producer system with simultaneous combustion of produced gases, what characteristic symptom is blue flame.
  • One-shot fuel fill-up is enough for about twenty four hours, however this period may lengthen depending on outside temperature and insulating power of the building.
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Basic Information

PRODUCT DESCRIPTION

Application

KWM-SG heating furnaces were designed to be used in central heating installations in flat buildings, trade pavilion, workshops, on farms, in glass-houses, schools, etc. Heating furnaces were granted ecological attestations and conformity certificates according to standard PN-EN 303-5 issued by the Institute of Chemical Processing of Coal in Zabrze and certificates issued by Technical Supervision Office for WE – module B1 project investigation.

Operation principles

Body of the KWM-SG heating furnace consists of furnace chamber and heat exchanger both made of high quality attested steel. Furnace has cuboidal shape, on its walls there are air nozzles and on the bottom there is water grate made of attested thick-walled pipes.

In KWM-SG heating furnace there are convection ducts located in the upper part of the heating furnace (upper duct) formed as “shelves”, where one of them is made in a form of griddle with furnace tubes. Such construction of the heating furnace has significant influence on its life time and prompt attaining rating power. In previous version of the KWM-SG heating furnace there was revision cleaning hole that facilitate access to convection ducts.

KWM-SG heating furnaces were equipped to thermal-resistant wide furnace door and fill-up door with purpose-made thermal gasket in the front of the heating furnace body. Whole body was covered with high-grade thermal insulation which is protected by steel casing. Central heating furnaces KWM-SG must be installed according to standard PN-91/B-02413 and BN-71/8864-27 concerning open vent water heating installations safety and open vent expansion tank.

Exploitation

Exploitation of KWM-SG heating furnaces is cyclical. It consists in one-shot fill-up with fine coal, firing it up from the top with use of small amount of paper and wood and starting up controller and blower. After having obtained previously set temperature the blower turns off and controller automatically turns into hold mode. The blower shall be started again when temperature falls under set value. When the fuel is burnt-out the controller turns off automatically. In order to launch the heating furnace once more it is necessary to remove ash from ash pan and furnace chamber and fill up fuel tank and fire up the heating furnace.

Fuels

Basic
  • fine coal

Price list

Check price list
Moc nominalnaWielkość powierzchni ogrzewanejCena nettoVATCena brutto
19 kWdo 100 m23 056,91 zł703,09 zł3 760,00 zł
25 kWdo 150 m23 406,50 zł783,50 zł4 190,00 zł
38 kWdo 200 m23 951,22 zł908,78 zł4 860,00 zł
50 kWdo 250 m24 585,37 zł1 054,63 zł5 640,00 zł
62 kWdo 300 m25 666,67 zł1 303,33 zł6 970,00 zł
75 kWdo 380 m27 975,61 zł1 834,39 zł9 810,00 zł
95 kWdo 530 m210 065,04 zł2 314,96 zł12 380,00 zł
125 kWdo 630 m213 504,07 zł3 105,93 zł16 610,00 zł
150 kWdo 750 m215 317,07 zł3 522,93 zł18 840,00 zł

Specifications

KWM-SG boiler
Technical data KWM-SG 19-150 kW
Type KWM-SG19253850627595125150
Rated powerkW19253850627595125
150
Min. powerkW68121519232938
45
Average operating power in a 24h working cyclekW912192531374762
75
Heating surface234567,510,512,5
14
Approximate heated area in a 24h working cycledo
100
100-
150
150-
200
200-
250
250-
300
300-
380
380-
530
530-
630
630-
750
Single fuel chargekg33465484100130220260
320
Fuel typeHard coal – fine coal MI grade type 32.1 class 25/12 according to PN-82/G-97001-3 standard
Boiler water capacityl84115145182210245370368
390
Boiler’s weightkg2633133804805306708801130
1245
Size of the doorheightmm200200200220220220220300
300
width280280280350350350350410
410
Depth of furnacemm355410460540590640780788
848
Width of furnacemm270330400450500600720788
848
Size of chamberdm³32506892112146247387
478
Max. water temperature°C90
Combustion timeh8-24
Max. working pressureBar1,5
Test pressureBar4,0
Thermal efficiency%8282838383838386
84
Required flue gas draftPa23-30
Required stack heightm55566778
9,5
Required stack hole cross-sectioncm²220230270300300350500750
950
ø170175185195195210255310
350
Dimensions of flue cross-sectionheightmm150150150190190210240270
270
width150150150190190210240270
270
Power consumption (230V/50Hz)W85170
370

Dimensions

KWM-SG boiler

KWM-SGunit19 kW25 kW38 kW50 kW62 kW75 kW95 kW125 kW150 kW
Amm151716101610164516951745188520502100
Bmm14421535153515701620167018102002050
Cmm368428498548598698818890950
Dmm45351358363368378390310001060
Emm403539559605659684774780810
Fmm5135686186987487989389801040
Gmm97110191069115412341284140014001460
Hmm133514171417148515351595175019251975
Imm20520520565656565270270
aø¾”¾”¾”¾”¾”¾”¾”¾”¾”

Control

KWM-SG boiler

ST–81 temperature regulator

ST–81 temperature regulator is intended for charging CH boilers. It controls the water circulation pump, hot usable water pump and the fan. Four optional modes of the pumps operation: house heating, boiler priority, parallel pumps, summer mode. The controller is casing is adjusted to be assembled in the boiler is installation.

Functions:

  • control of the fan, CH pump and HCW pump
  • the possibility of connecting room regulator

Equipment Controller:

  • LCD display
  • CH temperature sensor and HCW sensor
  • has temperature protection (thermal overload relay)
  • panel casing for installation of the boiler, made of high quality materials resistant to high and low temperatures
  • the possibility of installation on the boiler in OM-01 casing