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Buderus commercial and domestic boilers

[SB 825L LN 750kW]

Dimensions

Parameter Value
Length, L 3370mm
Length, LK 2425mm
Width, B 1324mm
Width, BWT1 914mm
Width, BWT2 535mm
Height, HF 1615mm
Height, HK 1615mm
Height, HWT 545mm
Operating weight 6 bar 3.7t
Operating weight 10 bar 3.8t
Shipping weight 6 bar 2.3t
Shipping weight 10 bar 2.4t
Flue gas connection, HAA 1060mm
Flue gas heat exchanger, Ø AA 250DN
Combustion chamber, Length 2201mm
Combustion chamber, Ø 600mm
Burner door, Depth 190mm
Burner door, HB 800mm
Base frame, LGR 2100mm
Base frame, BGR 910mm
Base frame, U-Profile 120mm
Boiler flow / return connection 80DN
Heat exchanger flow, HVWT 1174mm
Heat exchanger return, HRWT 947mm
Drain, ELK 25DN
Drain, ELA ¾"DN
Flange VK/RK/VSL, ∆t = 15K 100
Flange VK/RK/VSL, ∆t = 20K 80DN
Flange VK/RK/VSL, ∆t = 30K 65DN
Flange VK/RK/VSL, ∆t = 40K 65DN
Distance, A1 1390mm
Distance, A2 450mm
Distance, A3 600mm
Distance, A4 -

Technical Parameters

Parameter Value
Max working pressure 6bar to 10bar
Flue gas temperature at 60 °C 115°C
Flue gas temperature at 30 °C 99°C
Max flow temperature 110°C
Water flow resistance 265mbar
Flow rate crossing the external heat exchanger 32.4mN3/h
Nominal output heat exchanger at 60 °C 23.2kW
Nominal output heat exchanger at 30 °C 63.5kW
Max nominal heat output boiler 750kW
Water content 1.4m3
Flue gas resistance 4.1mbar
Gas content 1.24m3
CE certification, product ID no. CE-0085BO0397
Pressure at flue outlet 0 (50Pa) burner dependent
CO2 content, Gas 10.5%

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