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Worcester-Bosch Greenstar 2000 - GR2301iW Manual

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Energy consumption
Greenstar 2000 – 6 721 839 343 (2023/04)
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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.
Natural Gas appliances
Table 9 Product data on energy consumption Greenstar 2000
Product data Symbol Unit 7 736 902 326 7 736 902 325
Product type – – GR2301iW 25 C NG GR2301iW 30 C NG
Condensing boiler – –
Low temperature boiler – – 
B1 boiler – –
Cogeneration space heater – – 
Equipped with a supplementary heater? – – – –
Combination heater – – 
Rated heat output Prated kW 24 24
Seasonal space heating energy efficiency s%94 94
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 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).
P1kW 8.1 8.1
Useful efficiency
At rated heat output and high temperature regime 4% 87.9 87.9
At 30 % of rated heat output and low temperature regime 1%98.8 98.8
Auxiliary electricity consumption
At full load elmax kW 0.0370 0.0370
At part load elmin kW 0.0120 0.0120
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 40 40
Annual energy consumption QHE kWh 20.417 20.417
Annual energy consumption QHE GJ 73.5 73.5
Sound power level, indoors LWA dB 47 47
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 0.155 0.158
Annual electricity consumption AEC kWh 34 35
Daily fuel consumption Qfuel kWh 22.067 22.604
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 – –
… 20 …


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