Basic dimensions
EKO-CKBP
20
25
30
35
40
50
Rated heat output
DHW tank water content
Boiler water content
Boilermass
Flue gas tube diameter*
Burner opening (h x w)
Upper boiler door opening (h x w)
Lower boiler door opening (h x w)
Chimney underpressure
Flue gas temperature (fuel oil)
Flue gas temperature (wood)
Max. operating temperature
Main/Return flow
Filling/draining
(R)
1/2"
160
160
180
170x165
170x165
210x165
371x273
421x273
471x273
371x322
421x322
471x322
180
210x165
471x273
471x322
DHW connections
Max. operating overpressure
Boiler body width C
Boiler base depth F
Total boiler depth A
Total boiler width D
Total boiler height B
Flue gas tube height E
Max. log length
Energy efficiency class
3/4"
3/4"
2,5
2,5
470
520
600
600
6
Cold DHW
(kW)
(l)
(l)
15-20
20-25
65
72
81
87
25-30
30-35
80
80
90
98
35-40
40-50
80
100
106
118
(kg)
271
281
303
322
343
375
Ø (mm)
150
150
(mm)
170x165
170x165
(mm)
321x273
321x273
(mm)
321X322
321x322
(Pa)
16
18
19
20
21
23
1
Thermometer
7
Main flow
8
Thermal protection sensor mounting
hole (1/2" female thread)
9
Flue gas tube
10
Returnflow
11
Pellet/fuel oil burner installation
opening
12
Primary air flap
(°C)
170
(°C)
190
(°C)
90
170
170
170
190
190
190
90
90
90
5/4"
5/4"
5/4"
1/2"
1/2"
1/2"
(R)
3/4"
3/4"
(bar)
2,5
2,5
(mm)
420
420
(mm)
565
600
(mm)
983
1020
1020
1020
1020
1140
(mm)
515
515
565
615
665
665
(mm)
1610
1610
1610
1610
1610
1610
(mm)
930
930
930
930
925
925
(mm)
500
500
500
500
500
500
(R)
5/4"
170
180
2
190
220
3
90
90
5/4"
54"
4
1/2"
1/2"
5
3/4"
3/4"
Safety / airvent line Otvor
Draft regulator openings
Hot DHW
DHWcirculation
A
A
A
A
A
A
* the inner diameter of the chimney is determined according to the power of the boiler and the height of the chimney and must almost always be larger than the diameter of the flue gas tube
2,5
2,5
570
570
600
725
EKO-CKB P 20-50 kW
