8
Seasonal space heating energy efficiency
class
A
Water heating energy efficiency
class
A
Parameter
Symbol
Value
Unit
Parameter
Symbol
Value
Unit
Rated heat output
Prated
20
kW
Seasonal space heating energy
efficiency
ηs
93
%
For boiler space heaters and boiler combination heaters:
useful heat output
For boiler space heaters and boiler combination heaters:
useful efficiency
At rated heat output and high-
temperature regime (*)
P4
19.5
kW
At rated heat output and high-tem-
perature regime (*)
η4
88.1
%
At 30% of rated heat output and
low-temperature regime (**)
P1
6.5
kW
At 30% of rated heat output and
low-temperature regime (**)
η1
98.1
%
Auxiliary electricity consumption
Other parameters
At full load
elmax
29.0
W
Stand-by heat loss
Pstby
40.0
W
At part load
elmin
12.6
W
Pilot flame energy consumption
Pign
-
W
In Stand-by mode
PSB
5.6
W
Annual energy consumption
QHE
38
GJ
Sound power level, indoors
LWA
53
dB
Emissions of nitrogen oxides
NOx
19
mg/
kWh
For combination heaters:
Declared load profile
XL
Water heating energy efficiency
ηwh
85
%
Daily electricity consumption
Qelec
0.183
kWh
Daily fuel consumption
Qfuel
22.920
kWh
Annual electricity consumption
AEC
40
kWh
Annual fuel consumption
AFC
17
GJ
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) 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).
Seasonal space heating energy efficiency
class
A
Water heating energy efficiency
class
A
Parameter
Symbol
Value
Unit
Parameter
Symbol
Value
Unit
Rated heat output
Prated
24
kW
Seasonal space heating energy
efficiency
ηs
93
%
For boiler space heaters and boiler combination heaters:
useful heat output
For boiler space heaters and boiler combination heaters: useful
efficiency
At rated heat output and high-
temperature regime (*)
P4
24.5
kW
At rated heat output and high-tem-
perature regime (*)
η4
88.2
%
At 30% of rated heat output and
low-temperature regime (**)
P1
8.1
kW
At 30% of rated heat output and
low-temperature regime (**)
η1
97.6
%
Auxiliary electricity consumption
Other parameters
At full load
elmax
38.0
W
Stand-by heat loss
Pstby
35.0
W
At part load
elmin
15.3
W
Pilot flame energy consumption
Pign
-
W
In Stand-by mode
PSB
5.6
W
Annual energy consumption
QHE
47
GJ
Sound power level, indoors
LWA
56
dB
Emissions of nitrogen oxides
NOx
22
mg/
kWh
For combination heaters:
Declared load profile
XL
Water heating energy efficiency
ηwh
84
%
Daily electricity consumption
Qelec
0.197
kWh
Daily fuel consumption
Qfuel
23.021
kWh
Annual electricity consumption
AEC
43
kWh
Annual fuel consumption
AFC
17
GJ
(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
(**) 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).
Easi-Heat Plus 25C
Easi-Heat Plus 29C