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Buderus commercial and domestic boilers

[SB 315 115kW]

Dimensions

Parameter Value
Length (without burner) 1157mm
Width 820mm
Width for access 680mm
Height max with controls 1503mm
Height 1254mm
Weight 321kg
Flue gas connection, Ø DAA (internal) 183DN
Flue gas connection, HAA 317mm
Combustion chamber, Length 890mm
Combustion chamber, Ø 360mm
Burner door, Depth 70mm
Burner door, Ø DB 130mm
Burner door, Ø DLK 170/M8mm
Boiler return, HRK1 106mm
Condensate drain, HAKG 163mm

Technical Parameters

Parameter Value
Output 115kW
Nominal heat output at 75/60 °C, Full load 104.7kW
Nominal heat output at 75/60 °C, Part load 46kW
Nominal heat output at 40/30 °C, Full load 115kW
Nominal heat output at 40/30 °C, Part load 47kW
Max working pressure 4bar
Max flow temperature 120°C
Rated heat input 43kW - 107.5kW
Water content 240l
Pressure at flue outlet 50Pa
Flue gas resistance 0.77mbar
Gas content 142l
CE certification, product ID no. CE-0085 AT 0074
Type approval no. 06-223-706
Efficiency (NCV) 109%
Flue gas temperature, at 40/30 °C Full Load 45°C
Flue gas temperature, at 40/30 °C Part load 30°C
Flue gas temperature, at 75/60 °C Full load 72°C
Flue gas temperature, at 75/60 °C Part load 40°C
Flue gas mass flow rate, at 40/30 °C Full load 0.0443kg/s
Flue gas mass flow rate, at 40/30 °C Part load 0.0171kg/s
Flue gas mass flow rate, at 75/60 °C Full load 0.0458kg/s
Flue gas mass flow rate, at 75/60 °C Part load 0.0183kg/s
CO2 content 10%

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