- 31 -
INST
ALLA
TION
TECHNICAL INFORMATION
Model(s):
M300V.2025 SM
Condensing boiler:
Yes
Low-temperature boiler (**):
No
B1 boiler:
No
Cogeneration space heater:
No
If yes, equipped with a supplementary heater:
-
Combination heater:
Yes
Item
Symbol Value Unit
Item
Symbol Value Unit
Rated heat output
P
rated
21
kW
Seasonal space heating
energy efficiency
η
s
94
%
Seasonal energy efficiency
class
A
For boiler space heaters and boiler combination heat
-
ers: Useful heat output
For boiler space heaters and boiler combination heat
-
ers: Useful efficiency
At rated heat output and
high-temperature regime (*)
P
4
20,7
kW
At rated heat output and
high-temperature regime (*)
η
4
88,6
%
At 30% of rated heat output
and low-temperature regime
(**)
P
1
6,9
kW
At 30% of rated heat output
and low-temperature regime
(**)
η
1
98,9
%
Auxiliary electricity consumption
Other items
At full load
elmax
0,03
kW
Standby heat loss
P
stby
0,11
kW
At part load
elmin
0,01
kW
Ignition burner power con
-
sumption
P
ign
-
kW
In standby mode
P
SB
0,00
kW
Annual energy consumption
Q
HE
63
GJ
Sound power level, indoors
L
WA
49
dB
Emission of nitrogen oxides
NO
x
44
mg/
kWh
For combination heaters:
Declared load profile
XL
Water heating energy ef-
ficiency
η
wh
86
%
Daily electricity consumption
Q
elec
0,17
kWh
Daily fuel consumption
Q
fuel
22,46
kWh
Annual electricity consump
-
tion
AEC
37
kWh
Annual fuel consumption
AFC
17
GJ
Contact details
See manual cover
(*) 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).
