B Product Fiche
Vortex Pro
Combi Models
Symbols
Unit
VTXOMCOMBI21
VTXOMCOMBI26
VTXOMCOMBI36
Condensing boiler
Yes Yes Ye s
Low temperature boiler
No No No
B1 Boiler
No No No
Combination heater
Yes Yes Ye s
Rated heat output
Prated kW 21 26 36
Useful heat output
At rated heat output and high temperature regime
P
4
kW 21 26 36
At 30% of rated heat output and low temperature regime
P
1
kW 6.3 7.8 10.8
Auxiliary electricity consumption
At Full load
elmax kW 0.158 0.13 0.15
At part load
elmin kW 0.052 0.052 0.039
In standby mode
P
SB
kW 0.009 0.009 0.009
Declared load profile
XL XL XL
Daily electricity consumption
Q
elec
0.293 0.23 0.205
Annual electricity consumption
AEC 65.4 50.5 45.2
Useful efficiency
Seasonal space heating energy efficiency
ƞs % 90.81 91.71 94.56
At rated heat output and high temperature regime
ƞ
4
% 88.9 93.6 95.1
At 30% of rated heat output and low temperature regime
ƞ
1
% 97.1 96.4 99.3
Other items
Standby heat loss
P
stby
kW 0.23 0.264 0.522
Ignition burner power consumption
P
ign
kW 0 0 0
Annual energy consumption
Q
HE
kWh - - -
Sound power level, indoors
L
WA
dB 50.6 50.6 53.7
Emissions of nitrogen oxides
NOx mg/ kWh 180.4 151.8 127.3
Emissions Class
2 2 2
Water heating efficiency
ƞ
wh
% 68.23 62.6 60.38
Daily fuel consumption
Q
fuel
kWh 27.2 30 31.1
Annual fuel consumption
AFC GJ 21.556 26.673 24.67
50
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