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Buderus commercial and domestic boilers

[SB 825L LN 12000kW]

Dimensions

Parameter Value
Length, L 7740mm
Length, LK 6725mm
Width, B 2900mm
Width, BWT1 2054mm
Width, BWT2 1080mm
Height, HF 3200mm
Height, HK 3270mm
Height, HWT 1295mm
Operating weight 6 bar 42.9t
Operating weight 10 bar 45.2t
Shipping weight 6 bar 25.3t
Shipping weight 10 bar 27.6t
Flue gas connection, HAA 1900mm
Flue gas heat exchanger, Ø AA 800DN
Combustion chamber, Length 6330mm
Combustion chamber, Ø 1530mm
Burner door, Depth 259mm
Burner door, HB 1600mm
Base frame, LGR 6000mm
Base frame, BGR 1890mm
Base frame, U-Profile 280mm
Boiler flow / return connection 150DN
Heat exchanger flow, HVWT 2349mm
Heat exchanger return, HRWT 1452mm
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 250DN
Distance, A1 3780mm
Distance, A2 1800mm
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 161mN3/h
Nominal output heat exchanger at 60 °C 379kW
Nominal output heat exchanger at 30 °C 957kW
Max nominal heat output boiler 12000kW
Water content 17.5m3
Flue gas resistance 16.1mbar
Gas content 22.23m3
CE certification, product ID no. CE-0085BO0397
Pressure at flue outlet 0 (50Pa) burner dependent
CO2 content, Gas 10.5%

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