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EKR boiler

The cheapest fuel in Poland is still hard coal. Use of gas or oil fired central heating systems is 2-3 times more expensive than traditional coal fired system. Unfortunately, traditional coal fired central heating systems are harmful to the environment. Alas our new generation of EKR boilers is facing those issues. New retort combustion system produces much less exhaust fumes even then oil fired systems. Automatic fuel feeding system makes maintenance of boiler intuitive and limited to refueling of the hopper and ash removal only (about 10-20 min/day). Most of that type of boilers has been adapted to eco pea coal combustion.

EKR boiler thanks to his new, innovative feeder makes simultaneous fine coal combustion possible. What is more, we can use different combinations of fuel, for example: fine coal – pea coal, fine coal – wood shavings. This simplifies boiler’s maintenance and makes it cheaper.

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. For single-family house with rooms about 2,5m height we can easily calculate heat requirement depending on the level of house insulation:
:: For not insulated house with un-tight windows 140 – 160W/m2
:: For not insulated house with exchanged windows 120 -140 W/m2
:: For insulated house with exchanged windows 100 – 120 W/m2

So in case of not insulated house but with exchanged windows and with heated area of 160m2 we calculate:
160 m2 x 140 W/m2 = 22400 W = 22,4 kW
We should select 25kW boiler.

Specification Unit Type of boiler
EKR 15 EKR 25 EKR 38 EKR 50 EKR 75 EKR 100 EKR 150 EKR 200 EKR 250 EKR 300 EKR 350 EKR 500
Nominal power kW 15 25 38 50 75 100 150 200 250 300 350 500
Approximate size of heated area at assumption of (0,1 kW/m2) 2 0-150 150-250 250-380 380-500 500-750 750-1000 1000-1500 1500-2000 2000-2500 2500-3000 3000-3500 3500-5000
Fuel tank capacity dm3 150 187 187 189 270 400 518 683 700 700 957 957
Max. working pressure bar 1,5 2 2,5
Required flue gas drill Pa 23 25 27 32 34 41
Min. chimney height m 5 5 5,5 6 7 7,5 8,5 9
Min. cross-section of chimney cm2 15 25 38 50 75 100 150 200 250 300 350 500
Flue’s dimension width
height
mm Ø 160 Ø 160 Ø 160 200
200
250
250
250
250
250
250
250
250
350
350
400
400
450
450
450
450
Temperature of water at power supply min. oC 90
Temperature of water at th return max. oC 50
Weight of boiler without water kg 290 330 390 435 675 795 860 1125 2130 2640 3360 3950
Power supply V 230 V/50 Hz 400 V
Boiler efficiency % to 84
Fan power kW 0,08 0,16 0,24 0,52
Motoreducter power kW 90
Boiler’s dimensions width
height of the boiler
height
mm 1260
800
1250
1300
905
1510
1390
1015
1510
1475
1100
1610
1735
1430
1870
1930
1520
1870
2490
1610
1870
2535
1760
1870
3210
2410
1810
3260
2710
1810
3345
3085
1970
3835
3360
1990

wymiary-ekr

Basic fuel for EKR boilers is fine coal, MI sort, 25/9 class, or eco pea coal 27/05/06 class, 32.1 type, 0324/cc sort. EKR boiler’s efficiency is 84% and they characterize with low natural environment pollution.

*using wood and coal use the additional grid

  • fine coal
  • pea coal
  • wood

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