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Alpha E-Tec 25R - Energy Classification
12 ENERGY CLASSIFICATION
The values in the following tables refer to the maximum heating output.
Model(s):
E-Tec 25R
Condensing boiler:
YES
Low-temperature boiler:
NO
B1 boiler:
NO
Cogeneration space heater:
NO
Equipped with a supplementary heater:
NO
Combination heater:
NO
Item
Symbol
Value
Unit
Item
Symbol
Value
Unit
Rated heat output
P
n
24
kW
Seasonal space heating energy
efficiency
η
s
92
%
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 (*)
P
4
24.1
kW
At rated heat output and high
temperature regime (*)
η
4
87.8
%
At 30% of rated heat output and low
temperature regime (**)
P
1
8.0
kW
At 30% of rated heat output and low
temperature regime (**)
η
1
97.5
%
Auxiliary electricity consumption
Other items
At full load
el
max
0.027
kW
Standby heat loss
P
stby
0.009
kW
At part load
el
min
0.016
kW
Ignition burner power consumption
P
ign
0.000
kW
In standby mode
P
SB
0.006
kW
Emissions of nitrogen oxides
NO
X
32
mg /
kWh
For combination heaters:
Declared load profile
Water heating energy efficiency
η
WH
%
Daily electricity consumption
Q
elec
kWh
Daily fuel consumption
Q
fuel
kWh
Contact details
Alpha Therm Ltd., Nepicar House, Wrotham Heath, Kent. TN15 7RS
(*) 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.
12.1 TECHNICAL PARAMETERS FOR MIXED BOILERS (IN COMPLIANCE WITH REGULATION 811/2013)
