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Buderus commercial and domestic boilers

[SB 825L 11200kW]

Dimensions

Parameter Value
Length, L 6670mm
Length, LK 5655mm
Width, B 2550mm
Width, BWT1 2054mm
Width, BWT2 1080mm
Height, HF 2850mm
Height, HK 2900mm
Height, HWT 1295mm
Operating weight 6 bar 29.4t
Operating weight 10 bar 31.6t
Shipping weight 6 bar 18.4t
Shipping weight 10 bar 20.5t
Flue gas connection, HAA 1705mm
heat exchanger, Ø AA 800DN
Combustion chamber, Length 5362mm
Combustion chamber, Ø 1344mm
Burner door, Depth 259mm
Burner door, HB 1425mm
Base frame, LGR 5050mm
Base frame, BGR 1630mm
Base frame, U-Profile 280mm
Boiler flow / return connection 150DN
Heat exchanger flow, HVWT 2154mm
Heat exchanger return, HRWT 1257mm
Drain, ELK 50DN
Drain, ELA ¾"DN
Flange VK/RK/VSL, ∆t = 15K 350DN
Flange VK/RK/VSL, ∆t = 20K 300DN
Flange VK/RK/VSL, ∆t = 30K 250DN
Flange VK/RK/VSL, ∆t = 40K 200DN
Distance, A1 3430mm
Distance, A2 1200mm
Distance, A3 1100mm
Distance, A4 500mm

Technical Parameters

Parameter Value
Max working pressure 6bar to 10bar
Flue gas temperature at 60 °C 126°C
Flue gas temperature at 30 °C 112°C
Max flow temperature 110°C
Water flow resistance 200mbar
Flow rate crossing the external heat exchanger 145m3/h
Nominal output heat exchanger at 60 °C 343kW
Nominal output heat exchanger at 30 °C 847kW
Max nominal heat output boiler 11200kW
Water content 10.9m3
Flue gas resistance 16.6mbar
Gas content 14.1m3
CE certification, product ID no. CE-0085BO0397
Pressure at flue outlet 0 (50Pa) burner dependent
Efficiency (NCV) 104%
CO2 content, Gas 10.5%

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