Appendix
3066501_201910 WOLF GmbH | 93
12.4.2 Technical parameters to EU Regulation No. 813/2013
Type COB-2-
15
COB-2-
15/TS
COB-2-
20
COB-2-
20/TS
COB-2-
29
COB-2-
29/TS
COB-2-
40
Condensing boiler (Yes/No) Yes Yes Yes Yes Yes Yes Yes
Low temperature boiler
2
(Yes/No) No No No No No No No
B11 boiler (Yes/No) No No No No No No No
Space heater with CHP (Yes/No) No No No No No No No
If yes, with booster heater (Yes/No) - - - - - - -
Combi boiler (Yes/No) No Yes No Yes No Yes No
Parameter Symbol Unit
Rated heating output P
rated
kW 15 15 20 20 29 29 39
Usable heat at rated
heating output and high
temperature operation
1
P
4
kW 14.8 14.8 19.8 19.8 28.9 28.9 38.5
Usable heat at 30% rated
heating output and low
temperature operation
2
P
1
kW 4.8 4.8 6.4 6.4 9.2 9.2 12.6
Auxiliary power
consumption at full load
el
max
kW 0.128 0.128 0.128 0.128 0.176 0.176 0.209
Auxiliary power
consumption at partial
load
el
min
kW 0.049 0.049 0.050 0.050 0.065 0.065 0.076
Auxiliary power
consumption in standby
P
SB
kW 0.003 0.003 0.003 0.003 0.003 0.003 0.003
Seasonal central heating
efciency
n
s
% 92 92 92 92 93 93 93
Efciency at rated
heating output and high
temperature operation
1
n
4
% 94.1 94.1 93.9 93.9 94.0 94.0 93.9
Efciency at 30% rated
heating output and low
temperature operation
2
n
1
% 98.8 98.8 98.2 98.2 98.8 98.8 98.4
Heat loss on standby P
stby
kW 0.068 0.068 0.091 0.091 0.099 0.099 0.107
Energy consumption of
pilot light
P
ing
kW 0.000 0.000 0.000 0.000 0.000 0.000 0.000
Nitrogen oxide emission NO
x
mg/
kWh
62 62 69 69 68 68 87
Specied load prole (M,L,XL,XXL) - - XL - XL - XL -
Daily power consumption Q
elec
kWh - 0.393 - 0.369 - 0.341 -
DHW heating energy
efciency
n
wh
% - 83 - 81 - 81 -
Daily fuel consumption Q
fuel
kWh - 23.020 - 23.832 - 23.775 -
Contact WOLF GmbH, Industriestraße 1, 84048 Mainburg, Germany
1
High temperature operation means a return temperature of 60°C at the boiler inlet and a ow temperature of 80°C at the boiler outlet.
2
Low temperature operation means a return temperature (at the boiler inlet) of 30°C for condensing boilers, 37°C for low temperature boilers
and 50°C for other heating appliances.