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Energy consumption
Worcester 2000 – 6 721 814 552 (2019/09)
14
12 Energy consumption
12.1 Product data on energy consumption
The following product data comply with the requirements of the EU Regulations No. 811/2013, No. 812/2013, No. 813/2013 and No. 814/2013
supplementing the Regulation (EU) 2017/1369.
Table 7 Product data on energy consumption Worcester 2000
Product data Symbol Unit 7 736 902 027 7 736 902 028
Product type GC2000iW 25 C GC2000iW 30 C
Condensing boiler
Low temperature boiler 
B1 boiler
Cogeneration space heater 
Equipped with a supplementary heater?
Combination heater 
Rated heat output Prated kW 20 20
Seasonal space heating energy efficiency s%93 93
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.
P4kW 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).
P1kW 6.7 6.7
Useful efficiency
At rated heat output and high temperature regime 1) 4% 87.7 87.7
At 30 % of rated heat output and low temperature regime 2) 1% 97.9 97.9
Auxiliary electricity consumption
At full load elmax kW 0.0280 0.0280
At part load elmin kW 0.0110 0.0110
In standby mode PSB kW 0.0027 0.0027
Other items
Standby heat loss Pstby kW 0.055 0.055
Ignition burner power consumption Pign kW
Emissions of nitrogen oxides (only gas- or oil fired) NOxmg/kWh 39 39
Annual energy consumption QHE kWh 17,222 17,222
Annual energy consumption QHE GJ 62 62
Sound power level, indoors LWA 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) Qelec kWh 0.12 0.12
Annual electricity consumption AEC kWh 27 26
Daily fuel consumption Qfuel kWh 21.810 22.436
Annual fuel consumption AFC GJ 17 18
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
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