K4
Changes in models reserved.
Dimensions not binding!
Technical Data
General Information
9
Information requirements for boiler space heaters, boiler combination heaters
and cogeneration space heaters
Model(s):
VIADRUS K4G1H24XX
Condensing boiler:
yes
Low-temperature (**) boiler:
no
B1 boiler:
no
Cogeneration space heater:
no
If yes, equipped with a supplementary heater:
Combination heater:
no
Ite
m
Sy
m
bo
l
Val
ue
Un
it
Ite
m
Sy
m
bo
l
Val
ue
Un
it
Rated heat output
Prated
24
kW
Seasonal space heating energy
efficiency
ƞ
s
90
%
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
kW
At rated heat output and high-
temperature regime (*)
ƞ
4
97,53
%
At 30 % of rated heat output and
low-temperature regime (**)
P
1
4
kW
At 30 % of rated heat output and low-
temperature regime (**)
ƞ
1
105,72
%
Auxiliary electricity consumption
Other items
At full load
el
max
0,02
kW
Standby heat loss
P
stby
0,045
kW
At part load
el
min
0,011
kW
Ignition burner power consumption
P
ign
-
kW
In standby mode
P
SB
0,003
kW
Emissions of nitrogen oxides
NO
x
25
mg/
kWh
Contact details
VIADRUS a.s.
Bezručova 300
Bohumín
735 81
Czech Republic
(*)
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).
K4G1H24XX
Strebel Ltd.
Unit 10, Invincible Road,
Farnborough, Hampshire, GU14 7QU
UNITED KINGDOM
13
