Worcester Greenstar 25Si Compact - 3.4 Energy Efficiency

APPLIANCE INFORMATION
Greenstar Si Compact
ErP
- 6 720 813 278 (2015/07) 11
3.4 Energy efficiency
The following product data satisfy the requirements of the EU Regulations No. 811/2013 and No. 812/2013 supplementing Directive 2010/30/EU.
Product data Symbol Unit 7733600050 7733600052 7733600051 7733600054
Product type – – 25Si Compact
ErP
NG
30Si Compact
ErP
NG
25Si Compact
ErP
LPG
30Si Compact
ErP
LPG
Condensing boiler – – Yes Yes Yes Yes
Low temperature boiler – – No No No No
B1 boiler – – No No No No
Cogeneration space heater (CHP) – – No No No No
Combination heater – – Yes Yes Yes Yes
Rated heat output P
rated
kW 24 24 24 24
Seasonal space heating energy efficiency* η
s
%94 94 94 94
Energy efficiency class – – A A 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 24 24 24 24
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 8.1 8.1 8.1 8.1
Useful efficiency
At rated heat output and high temperature
regime
1)
η
4
% 88.8 88.8 88.8 88.8
At 30% of rated heat output and low
temperature regime
2)
η
1
% 99.5 99.5 99.5 99.5
Auxiliary electricity consumption
At full load el
max
kW 0.029 0.029 0.029 0.029
At part load el
min
kW 0.014 0.014 0.014 0.014
In standby mode P
SB
kW 0.001 0.001 0.001 0.001
Other items
Standby heat loss P
stby
kW 0.078 0.078 0.078 0.078
Ignition burner power consumption P
ign
kW 0 0 0 0
Emissions of nitrogen oxides NOx mg/kWh 25 25 25 25
Annual energy consumption Q
HE
kWh - - - -
Sound power level, indoors L
WA
dB(A) 52 52 52 52
Additional data for combination heaters
Declared load profile – – XL XL XL XL
Daily electricity consumption Q
elec
kWh 0.139 0.137 0.139 0.137
Annual electricity consumption AEC kWh 31 30 31 30
Daily fuel consumption Q
fuel
kWh 20.377 20.891 20.377 20.891
Annual fuel consumption AFC GJ 1383 1418 1383 1418
Water heating energy efficiency η
wh
%86 84 86 84
Water heating energy efficiency class – – A A A A
Table 6 Product data for energy consumption according to the EU regulations no. 811/2013 and no. 813/2013