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kwgr-01

KWGR-GENERATOR boiler

KWGR-GENERATOR heating boiler is a new generation solid fuel boiler. Combustion process is stimulated by an induced air flow delivered by blowing ventilator which is controlled by microprocessor. Combustion process occurs vertically (so called upper-combustion). As a result of high temperature carbonization effect takes place. The remained gas is then after-burned in secondary air flow which is delivered to various levels of the combustion chamber by multiple point air jet system. KWGR boiler is produced in multiple variants as per order. Caution! Boiler does not need a chimney insert.

KWGR-GENERATOR is designed to heat water in the central heating system to the temperature not exceeding 900°C at the boiler’s outlet. They are used in the central heating system and central hot water systems (gravitational or pump systems). KWGR boilers are designed for heating living quarters, warehouses, commercial halls, workshops, farm buildings, glasshouses, schools etc. Thanks to innovative construction, which influence boilers’ efficiency (average efficiency 80-82%), as well as the use of fine coal as a basic fuel KWGR boiler is a great alternative for other coal, oil or gas boilers, as the costs of maintenance are smaller

Base for appropriate boiler selection is a thermal balance of the heated area created according to thermal standards for buildings. While selecting boiler for heating multi buildings systems it is recommended to calculate thermal balance. During calculation it is also important to take into account heat loss in the transmission system of the building. To select the most appropriate boiler for you please use our Assistant. In the chart below is technical data, which can be used for selection of appropriate size of the boiler. The given data is approximate and was estimated for rooms up to 3m height and heat loss of 110W/m2.Before making the final decision please remember to take into account 10% of boiler’s power reserve in proportion to actual power requirement resulting from thermal balance calculation.

Specification Unit Type of the boiler
GR-26 GR-50 GR-65 GR-80 GR-90 GR-100 GR-120 GR-170 GR-220 GR-280 GR-350 GR-450 GR-560 GR-800
Nominal power kW 12 20 27 36 45 56 75 110 150 190 240 300 380 550
Average maintance power in 24 hours system kW 6 10 14 18 23 28 36 54 85 118 150 190 220 320
Single fuel charge kg 25 40 55 75 90 115 220 350 480 600 780 960 1500
Thermal efficiancy % 82-85 82
Max. working pressure bar 1 1,5 2,5
Water temperature at the power supply max. oC 90
Water temperature at the return min. oC 50
Approximate size of the heated area at 0,1 kW/m2 m2 80-120 120-200 200-270 270-360 360-450 450-560 560-750 750-1100 1100-1500 1500-1900 1900-2400 2400-3000 3000-3800 3800-5500
Required flue gas drift Pa 23 27 32 36 45
Min. chimney height m 5 6 7 8 10
Min. cross-section of chimney cm2 260 260 300 400 480 530 620 730 900 1100 1300 1700 2030 2400
Boiler’s weight without water kg 250 350 365 460 495 770 990 1100 1220 1600 2130 2640 3360 3950
Boiler’s dimensions width
lenght
height
mm 440
1115
1170
530
1190
1210
530
1280
1250
650
1300
1270
700
1310
1340
770
1350
1430
850
1630
1500
995
1810
1620
1025
2300
1620
1130
2470
1640
1290
2550
1790
1380
2985
1790
1535
3090
1970
1850
3700
2030
Diameter of spout and return mm 50 50 50 50 65 65 80 80 100 100 125 150 150 150
Flue’s dimension width
height
mm Ø160 Ø160 Ø160 180
220
180
220
200
250
230
260
250
250
300
300
300
300
350
350
400
400
400
450
450
450
Power supply V 230 V/50 Hz

Wersja górnokanałowa:
charakterystyka-ekr-75

 
Wersja tylnokanałowa:
charakterystyka-ekr-75

Basic fuel – Fine coal, MI sort, 25/9 class according to PN-82/G-97001
Substitute fuel – Hard coal, MII sort, 22/9 class according to PN-82/G-97001-3

  • fine coal
  • pea coal
  • wood sawdust