Energy consumption
15
Greenstar 8000 + – 6721890764 (2024/06)
14 Energy consumption
The maximum heat output of this boiler can be adjusted to suit the exact
requirements of the building. The process of adjusting the maximum
heat output is commonly referred to as range rating. The new boiler is set
at the maximum output and should be adjusted when it is installed and
commissioned. In accordance with the standards, the declared space
heating efficiency, useful efficiency and NO
x
values efficiency for this
range rated boiler are not measured at the maximum output. To achieve
the published efficiency and NO
x
values, the gas rate should be reduced
by your installer during commissioning (Æ Installation and Maintenance
instructions).
14.1 Product data on energy consumption
The information provided fulfills the requirements of regulations (EU) 811/2013 and (EU) 813/2013.
Specific precautions for installation, maintenance as well as recycling and/or disposal are provided within the installation and operating manuals. Read
and follow the installation and operating manuals.
Table 9 Product data on energy consumption Greenstar 8000 +
Product data Symbol Unit 7736702592
7736702599
7736702593
7736702600
7736702594
773670601
7736702595
773670602
773670256
773670603
Product type – – GR8701iW
30 R NG/LPG
GR8701iW
35 R NG/LPG
GR8701iW
40 R NG/LPG
GR8701iW
45 R NG/LPG
GR8701iW
50 R NG/LPG
Energy Efficiency Class – – A A A A A
Range rated heat output P
rated
kW 30 35 40 45 50
Seasonal space heating energy efficiency at range
rated output
K
s
% 94 94 94 94 94
Annual energy consumption (average climate
conditions)
Q
HE
kWH–––––
Annual energy consumption Q
HE
GJ 69 78 78 78 78
Sound power level, indoors L
WA
dB 53 53 55 55 55
Special precautions to be taken during assembly,
installation or maintenance (if applicable)
– – Æ product accompanying documents
Condensing boiler – – Yes Yes Yes Yes Yes
Low temperature boiler – – No No No No No
B1 boiler – – No No No No No
Cogeneration space heater – – No No No No No
Combination heater – – No No No No No
Useful heat output
At rated heat output and high temperature regime P
4
kW 29.5 33.7 40.0 42.0 47.9
At 30% of rated heat output and low temperature
regime
P
1
kW 9.9 11.3 13.4 14.4 16.2
Useful efficiency
At rated heat output and high temperature regime K
4
% 88.5 88.8 88.6 88.7 88.7
At 30% of rated heat output and low temperature
regime
K
1
% 98.7 98.8 98.7 99.3 99.3
Auxiliary electricity consumption
At full load el
max
kW 0.067 0.048 0.075 0.084 0.084
At part load el
min
kW 0.014 0.013 0.014 0.014 0.014
In standby mode P
SB
kW 0.001 0.001 0.001 0.001 0.001
Other items
Standby heat loss P
stby
kW 0.071 0.071 0.071 0.071 0.071
Ignition burner power consumption P
ign
kWh – –
Emissions of nitrogen oxides (only gas- or oil
fired) at range rated output
NO
x
mg/kWh 23 25 23 25 30
Additional data for combination heaters
Daily electricity consumption (average climate
conditions)
Q
elec
kWh 0.180 0.168 0.177 0.170 0.172
Daily fuel consumption Q
fuel
kWh 21.652 22.174 22.656 22.512 22.368
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