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Buderus commercial and domestic boilers

[S 825L 4200kW]

Dimensions

Parameter	Value
Length, L	4570mm
Length, L_K	4250mm
Width, B	1824mm
Height, H_F	2115mm
Height, H_K	2115mm
Operating weight 6 bar	11.1t
Operating weight 10 bar	11.8t
Shipping weight 6 bar	7.3t
Shipping weight 10 bar	8t
Flue gas connection, Ø AA	505mm
Flue gas connection, H_AA	1500mm
Combustion chamber, Length	3987mm
Combustion chamber, Ø	932mm
Burner door, Depth	257mm
Burner door, H_B	1050mm
Base frame, L_GR	3920mm
Base frame, B_GR	1260mm
Base frame, U-Profile	220mm
Drain, ELK	32DN
Drain, ELA	¾"DN
Flange VK/RK/VSL, ∆t = 15K	200DN
Flange VK/RK/VSL, ∆t = 20K	200DN
Flange VK/RK/VSL, ∆t = 30K	150DN
Flange VK/RK/VSL, ∆t = 40K	125DN
Distance, A₁	2870mm
Distance, A₂	600mm
Distance, A₃	650mm
Distance, A₄	-

Technical Parameters

Parameter	Value
Max working pressure	6bar to 10bar
Max flow temperature	110°C
Water content	3.8m³
Pressure at flue outlet	0Pa
Gas content	4.61m³
CE certification, product ID no.	CE-0085BO0396
Nominal heat output	4200kW
CO₂ content, Gas	10.5%
CO₂content, Oil	13.5%

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