77
9.2
Boiler technical sheet
Information requirements for boiler space heaters, boiler combination heaters
Model(s):
MURELLE.HT 25
Condensing boiler:
Yes
Low-temperature boiler:
Yes
B11 boiler:
No
Cogeneration space heater:
No
Equipped with a supplementary heater:
No
Combination heater:
Yes
Item
Symbol
Value
Unit
Item
Symbol
Value
Unit
Nominal heat output for space heating
P
n
24
kW
Seasonal space heating energy efficiency
η
s
93
%
For boiler space heaters and boiler combination heaters:
useful heat output
For boiler space heaters and boiler combination heaters:
useful efficiency
At nominal heat output and high-
temperature regime
a
P
4
24,2
kW
At nominal heat output and high-
temperature regime (*)
η
4
89,0
%
At 30% of nominal heat output and
low-temperature regime
b
P
1
8,0
kW
At 30% of nominal heat output and
low-temperature regime (*)
η
1
97,7
%
Auxiliary electricity consumption
Other items
At full load
el
max
0,044
kW
Standby heat loss
Pstby
0,095
kW
At part load
el
min
0,016
kW
Ignition burner power consumption
Pign
0
kW
In standby mode
PSB
0,005
kW
Emissions of nitrogen oxides
Выбросы NOx
NOx
34
mg/kWh
For combination heaters:
Declared load profile
XL
Water heating energy efficiency
η
wh
82
%
Daily electricity consumption
Qelec
0,184
kWh
Daily fuel consumption
Qfuel
23,739
kWh
Contact details
Fonderie Sime S.p.A. Via Garbo 27, 37045 Legnago (VR) ITALIA
a. High-temperature regime means 60°C return temperature at heater inlet and 80°C feed temperature at heater outlet.
b. Low-temperature regime means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return
temperature.
(*) The yield data have been calculated using the higher heating value.
