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Buderus commercial and domestic boilers

[SB 825L 2500kW]

Dimensions

Parameter Value
Length, L 4365mm
Length, LK 3420mm
Width, B 1574mm
Width, BWT1 1254mm
Width, BWT2 705mm
Height, HF 1865mm
Height, HK 1865mm
Height, HWT 770mm
Operating weight 6 bar 7.1t
Operating weight 10 bar 7.5t
Shipping weight 6 bar 4.9t
Shipping weight 10 bar 5.3t
Flue gas connection, HAA 1205mm
heat exchanger, Ø AA 400DN
Combustion chamber, Length 3149mm
Combustion chamber, Ø 776mm
Burner door, Depth 190mm
Burner door, HB 925mm
Base frame, LGR 3060mm
Base frame, BGR 1130mm
Base frame, U-Profile 160mm
Boiler flow / return connection 125DN
Heat exchanger flow, HVWT 1406mm
Heat exchanger return, HRWT 1005mm
Drain, ELK 32DN
Drain, ELA ¾"DN
Flange VK/RK/VSL, ∆t = 15K 200DN
Flange VK/RK/VSL, ∆t = 20K 150DN
Flange VK/RK/VSL, ∆t = 30K 125DN
Flange VK/RK/VSL, ∆t = 40K 100DN
Distance, A1 2180mm
Distance, A2 550mm
Distance, A3 650mm
Distance, A4 -

Technical Parameters

Parameter Value
Max working pressure 6bar to 10bar
Flue gas temperature at 60 °C 124°C
Flue gas temperature at 30 °C 109°C
Max flow temperature 110°C
Water flow resistance 250mbar
Flow rate crossing the external heat exchanger 107.5m3/h
Nominal output heat exchanger at 60 °C 85kW
Nominal output heat exchanger at 30 °C 212kW
Max nominal heat output boiler 2500kW
Water content 2.2m3
Flue gas resistance 9.2mbar
Gas content 2.93m3
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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