Standard furnaces with regulator and blower

UKS-G boiler

12-43 kW
  • UKS-G heating furnaces (upper duct) are modernized version of UKS heating furnaces that has been enjoying popularity for many years.
  • Being standard heating furnaces they can be used with any kind of fuel and they make up an alternative for gas-fired, oil-fired and coal-fired heating furnaces of old types.
  • In this kind of heating furnaces it is possible to burn such fuels as fine coal, coal, wood, pellets and fuel mixtures as well as biomass components.
  • They can be used in central heating systems in flat buildings, workshops, industrial buildings and public utility buildings.
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Basic Information


Operation principles

Available power rating: 15-43 kW. UKS-G heating furnaces meet with energy-ecology standard proved by ecological certification issued by the Institute of Chemical Processing of Coal in Zabrze. They are equipped to fan and microprocessor-based regulator that controls heating furnace performance. It has a huge influence on raising heating furnace efficiency, it makes handling easier, keeps temperature set point on appropriate level and controls operation of circulation pump, supposing the system was equipped to one.

Modern construction and system of air distribution allow to burn fine coal using “from the top” burning method. It significantly reduces environment pollution. Instead of standard control automation system and blower, heating furnaces can be equipped to draught regulator which decreases price of the device. Heating furnaces are characterised with very big furnace chamber which let on filling up fuel tank with substantial amount of fuel in comparison with other similar heating furnaces. The result is slow combustion upon single fill-up. Depending on applied fuel and control units the heating furnace works in so-called average round-clock system, which means fuel fill-up takes place once a twenty four hours on average. Wide fill-up door enable loading significantly larger pieces of fuel.

Heating furnace design

Body of the UKS-G heating furnace consists of furnace chamber and heat exchanger made of high quality attested steel. Furnace is of cuboidal shape and is closed from the bottom with water grate made of attested thick-walled pipes. In UKS-G heating furnace, convection ducts are located in upper part of the body (upper duct) and they take shape of “shelves”.

Such design significantly affects life time of the heating furnace since there is no phenomenon of condensation of combustion gases in convection part. What is more, water tubes made of thick-walled pipes were installed in one of ducts. In the front part of UKS-G heating furnace there is revision cleaning hole which facilitates access to convection ducts.

Heating furnaces UKS-G are 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 UKS-G 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.


  • fine coal
  • coal
  • wood
  • biomass

Price list

Check price list
Moc nominalnaWielkość powierzchni ogrzewanejCena nettoVATCena brutto
12 kWdo 90 m22 829,27 zł650,73 zł3 480,00 zł
16 kW do 120 m22 886,18 zł663,82 zł3 550,00 zł
20 kWdo 150 m23 032,52 zł697,48 zł3 730,00 zł
24 kWdo 180 m23 211,38 zł738,62 zł3 950,00 zł
30 kWdo 220 m23 487,80 zł802,20 zł4 290,00 zł
36 kWdo 280 m24 032,52 zł927,48 zł4 960,00 zł
43 kWdo 340 m24 756,10 zł1 093,90 zł5 850,00 zł


UKS-G boiler
Technical data UKS-G 12-43 kW
Type UKS-G12162024303643
Rated powerkW12162024303643
Min. powerkW4567101213
Average operating power in a 24h working cyclekW791012161921
Heating surfacem21,21,51,82,23,03,54,0
Approximate heated areaam2to 9090-120120-150150-180180-220220-280280-340
Insulated building, new installation (q125W/m2)m2-120120-160160-200200-240240-300300-360360-430
Single fuel chargekg2024344878102123
Fuel basicHard coal – fine coal MI grade, type 32.1 class 25/12 according to PN-82/G-97001-3 standard
Boiler water capacityl57637488118133151
Boiler’s weightkg187203234263326363402
Size of the doorheightmm200200200200200200200
Depth of furnacemm290290340380470490510
Width of furnacemm260310370370420470520
Size of chamberdm32126375284110132
Max. water temperature°C90
Combustion timeh8-24
Max. working pressureBar1,0
Test pressureBar4,0
Thermal efficiencyFuel basic%80
Fuel substitute75
Required flue gas draftPa20202222252525
Required stack heightm57
Required stack hole cross-sectioncm2284284284415415415415
Dimensions of flue cross-sectionømm160160160160160
Power consumptionW85


UKS-G boiler

UKS-Gj.m.12 kW16 kW20 kW24 kW30 kW36 kW43 kW


UKS-G 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.


  • 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


UKS-G boiler


UKS-G boiler