Worcester Greenstar Heatslave II ErP 18/25

Appliance information
Greenstar Heatslave II
ErP -
6 720 813 344 (2014/09) 7
3.3 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 7731600047 7731600048 7731600049
Product type – – Greenstar Heatslave II
ErP
12/18
Greenstar Heatslave II
ErP
18/25
Greenstar Heatslave II
ErP
25/32
Condensing boiler – – Yes Yes Yes
Low temperature boiler – – No No No
B1 boiler – – No No No
Cogeneration space heater (CHP) – – No No No
Combination heater – – Yes Yes Yes
Rated heat output P
rated
kW 18 25 32
Seasonal space heating energy efficiency 
s
%919091
Energy efficiency class – – 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 17.9 24.9 32.2
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 5.7 7.9 10.2
Useful efficiency
At rated heat output and high temperature
regime
1)

4
% 91.1 90.9 91.4
At 30 % of rated heat output and low
temperature regime
2)

1
% 96.8 95.8 96
Auxiliary electricity consumption
At full load el
max
kW 0.136 0.161 0.163
At part load el
min
kW 0.044 0.047 0.048
In standby mode P
SB
kW 0.002 0.002 0.002
Other items
Standby heat loss P
stby
kW 0.123 0.160 0.160
Ignition burner power consumption P
ign
kW 0 0 0
Emissions of nitrogen oxides NOx mg/kWh 243 193 136
Annual energy consumption Q
HE
kWh---
Sound power level, indoors L
WA
dB(A)545654
Additional data for combination heaters
Declared load profile – – XL XL XL
Daily electricity consumption Q
elec
kWh 0.458 0.353 0.361
Annual electricity consumption AEC kWh 101 78 80
Daily fuel consumption Q
fuel
kWh 29,030 27,979 28,686
Annual fuel consumption AFC GJ 1.774 1.710 1.753
Water heating energy efficiency 
wh
%687170
Water heating energy efficiency class – – B B B
Table 2 Product data for energy consumption