Boiler for coal H4EKO-U with pellets burner

Boilers for pellets and coal

Boiler for coal H4EKO‑U with pellet burner

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EKO design

Economical and simple boiler with which you can combine two heating sources. 

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The H4EKO‑U coal boiler with a pellet burner meets the requirements of users who prefer economical heating and at the same time want an alternative heating source.

Easy Operation

  • The coal boiler has a large hopper so that you don’t have to refill too often.
  • It combines two heating sources.
  • Easy to regulate

Economic operation

  • Efficiency up to 84.2 %.
  • Low fuel and electricity consumption.
  • It belongs to emission class 4./5. and meets ecodesign conditions.

Small size

  • It is also suitable for small boiler rooms with low ceilings.
  • Boilers with an output of 16 kW and 20 kW can also fit through a 60 cm width.

Boilers long service life

  • Warranty 5 years
  • The boiler sheet thickness of 5 mm guarantees a long service life
Boiler model   H4EKO 17 PELLET H4EKO 18 PELLET H4EKO 19 PELLET
Guaranteed fuel / wooden pellets 6 – 8 mm
Nominal output kW 17 18 19
Measured nominal output kW 16,4 17,4 18,4
Measured minimal output kW 5 5,2 5,4
Emission class according to ČSN 303 – 5:2013                                5
Efficiency nominal/​minimal output % 91,2/89,6 91,8/90,25 92,4/90,9
Fuel consumption (min./max output) kg/​h 1,2 – 3,8 1,3 – 4 1,3 – 4,3
Operating chimney draft (min./max output) Pa 3,7 – 5,6 3,7 – 5,6 2,7 – 4,3
Average flue gas temperature  °C 70 – 105 66 – 98 62 – 90
Connecting voltage V/​Hz                             230V/50Hz1-10%
Ele. input operating/​maximum W                             20 – 49/375
Noise dB                             50
Appliance coverage /                             IP21
Fuel consumption at nominal output (16800KJ/​kg) kg/​hod 2,747 3,287 3,827
Water volume l 32 36 44
Boiler weight kg 217 241 253
Guaranteed fuel / brown coal nut 1
Nominal output kW 16 20 25
Emission class according to ČSN 303 – 5:2013                               4
Efficiency % 84,2 84,2 85,5
Fuel consumption kg/​h 2,5 3 4,1
Burning time at nominal output h >4 >4 >4
Flue gas temperature at nominal output °C 253 226 200
Operating chimney draft — prescribed Pa 22 22 22
Operating chimney draft — minimal  Pa 15 15 15
Dimensions        
Outlet/​inlet socket type (female thread)   G1 1/4″ G1 1/4″ G1 1/4″
Cooling loop connection  (female thread)   G 1/2″ G 1/2″ G 1/2″
Connection for draining and filling (female thread)   G 1/2″ G 1/2″ G 1/2″
Connection for mouting the power regulator (female thread)   G 3/4″ G 3/4″ G 3/4″
Boiler body wall thickness (water/​flame) mm 5 5 5
Max.heating water overpressure MPa 0,2 0,2 0,2
Heating water test overpressure  MPa 0,4 0,4 0,4
Hydraulic loss at ∆T=20/10K mbar 1,6 – 5,9 1,4 – 5,4 1,1 – 4,8
Flue diameter mm 130 130 159
Fuel shaft capacity l 33,5 40 55
Filling hole dimension mm 176x256 176x306 176x405
Heating surface m2 1,9 2,1 2,5
Heating water temperature range °C 65 – 90 65 – 90 65 – 90
         
         
Assembly dimensions    
Boiler assembly   H4EKO 17 Pellet H4EKO 18 Pellet H4EKO 19 Pellet
Boiler type   H416EKO‑U H420EKO‑U H425EKO‑U
Dimensions        
C‑boiler height          mm 960 960 960
C1-boiler height with open lid  mm 1615 1615 1615
D‑boiler width          mm 651 701 801
Q‑tank height        mm 1310 1310 1310
A‑total boiler widht incl. tank  mm 1748 1798 1898
E‑boiler depth with 2m feeder  mm 1170 1170 1170
B‑height of boiler assembly with 2m feeder  mm 1568 1568 1568
I‑burner depth mm 273 273 273
I2-burner width           mm 242 242 242
J‑total boiler depth inc.burner           mm 1145 1145 1145
D2-distance from the side fairing of boiler to center of flue mm 215 240 290
K‑tank width mm 810 810 810
L‑tank depth         mm 810 810 810
M‑control unit width  mm 178 178 178
F‑placing the inlet water nozzle from the ground to the center of the outlet mm 109 109 109
G‑placing the flue from the ground the center of the outlet  mm 635 635 635
H‑placing the outlet water nozzle from the ground to the center of the outlet  mm 791 791 791
Product informations
Technical documentation