Worcester Greenstar 2000 - Page 20

Energy consumption
Greenstar 2000 – 6 721 820 553 (2021/02)
20
Liquid Gas appliances
Table 8 Product data on energy consumption Greenstar 2000
Product data Symbol Unit 7 736 902 101 7 736 902 102
Product type – – GR2300iW 25 C LPG GR2300iW 30 C LPG
Condensing boiler – –  
Low temperature boiler – – 
B1 boiler – –  
Cogeneration space heater – – 
Equipped with a supplementary heater? – – – –
Combination heater – – 
Rated heat output P
rated
kW 20 20
Seasonal space heating energy efficiency 
s
% 93.0 93.0
Energy Efficiency Class – – A A
Useful heat output
At rated heat output and high temperature regime
1)
1) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.
P
4
kW 20 20
At 30 % of rated heat output and low temperature regime
2)
2) 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).
P
1
kW 6.7 6.7
Useful efficiency
At rated heat output and high temperature regime 
4
% 89.6 89.6
At 30 % of rated heat output and low temperature regime 
1
% 98.8 98.8
Auxiliary electricity consumption
At full load el
max
kW 0.0280 0.0280
At part load el
min
kW 0.0110 0.0110
In standby mode P
SB
kW 0.0027 0.0027
Other items
Standby heat loss P
stby
kW 0.055 0.055
Ignition burner power consumption P
ign
kW – –
Emissions of nitrogen oxides (only gas- or oil fired) NO
x
mg/kWh 66 66
Annual energy consumption Q
HE
kWh 16.944 16.944
Annual energy consumption Q
HE
GJ 62 62
Sound power level, indoors L
WA
dB 43 43
Additional data for combination heaters
Declared load profile – – XL XL
Water heating energy efficiency 
wh
% 84 84
Water heating energy efficiency class – – A A
Daily electricity consumption (average climate conditions) Q
elec
kWh 0.13 0.13
Annual electricity consumption AEC kWh 27 26
Daily fuel consumption Q
fuel
kWh 21.832 22.056
Annual fuel consumption AFC GJ 17 17
Indication about ability working only during off-peak hours – –  
Other load profiles – – – –
Standing loss S W – –
Storage volume V l – –
Non-solar storage volume (Vbu) Vbu l – –