25
30
Installed weight when filled with water
kg
32.5
32.5
3.2.2
Technical parameters
Tab.14 Technical parameters for boiler combination heaters
25
30
Condensing boiler
Yes
Yes
Low-temperature boiler
(1)
No
No
B1 boiler
No
No
Cogeneration space heater
No
No
Combination heater
Yes
Yes
Rated heat output
Prated
kW
20
20
Useful heat output at rated heat output and high tem
perature regime
(2)
P
4
kW
20
20
Useful heat output at 30% of rated heat output and low
temperature regime
P
1
kW
6.7
6.7
Seasonal space heating energy efficiency
ƞ
s
%
93
93
Useful efficiency at rated heat output and high temper
ature regime
ƞ
4
%
88.0
88.0
Useful efficiency at 30% of rated heat output and low
temperature regime
ƞ
1
%
97.8
97.8
Auxiliary electricity consumption
Full load
elmax
kW
0.028
0.038
Part load
elmin
kW
0.015
0.015
Standby mode
P
SB
kW
0.003
0.003
Other items
Standby heat loss
P
stby
kW
0.040
0.040
Ignition burner power consumption
P
ign
kW
0
0
Annual energy consumption
Q
HE
GJ
62
62
Sound power level, indoors
L
WA
dB
48
48
Emissions of nitrogen oxides
NO
X
mg/kWh
31
31
Domestic hot water parameters
Declared load profile
XL
XL
Daily electricity consumption
Q
elec
kWh
0.192
0.196
Annual electricity consumption
AEC
kWh
42
43
Water heating energy efficiency
ƞ
wh
%
90
89
Daily fuel consumption
Q
fuel
kWh
21.174
21.465
Annual fuel consumption
AFC
GJ
16
17
(1) Low temperature means for condensing boilers 30°C, for low temperature boilers 37°C and for other heaters 50°C return temperature
(at heater inlet).
(2) High temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.
3 Technical specifications
16
H
S
Main Eco Compact Combi
Main Eco Compact Combi
