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Buderus commercial and domestic boilers

[800 - 29kW]

Dimensions

Parameter Value
Depth 431mm
Width 560mm
Height 685mm
Weight without casing 48kg
Boiler flow and return connections R 1"
Condensate drain R 1¼"
Gas connection R ½

Technical Parameters

Parameter Value
Output 29kW
Nominal heat output at 75/60 °C, Full load 27.3kW (93.15Btu/h)
Nominal heat output at 75/60 °C, Part load 8.2kW (27.98Btu/h)
Nominal heat output at 40/30 °C, Full load 29.9kW (102.02Btu/h)
Nominal heat output at 40/30 °C, Part load 8.8kW (30.03Btu/h)
Rated heat input, Part load 8.4kW (28.66Btu/h)
Rated heat input, Full load 28kW (95.54Btu/h)
Boiler efficiency at 75/60 °C (NCV) 105%
Boiler efficiency at 40/30 °C (NCV) 109%
Max working pressure 3bar
Free feed pressure of fan up to 140Pa
ΔT at residual head of 200 mbar approx. 18K
Water content heat exchanger 3l
Condensate water rate natural gas H, 40/30 °C 3.3l/h
Minimum water circulation volume 225l/h
Flue gas temperature 40/30 °C 45°C
Flue gas temperature 75/60 °C 65°C
Flue gas mass flow rate, full load 12.64g/s
Natural Gas pressure @ 20 mbar Y
LPG pressure @ 37 mbar Y
Seasonal efficiency [as L2B] 90.1% Band A
Max flow temperature 40°C - 80°C
Pump over-run time Position 1 4min
Pump over-run time Position 2 24h
CO2 content at full load, natural gas G20 9.2%
Standard emission factor CO <15mg/kWh
Standard emission factor Nox <20mg/kWh
Gasrate G20 2.96m3/h
Type of flue gas system Concentric 80mm / 125mm
Mains connection voltage 230V
Electrical power consumption, full load 130W
Electrical power consumption, part load 70W
Gas pressure 17-24 bar

Return to 800 Range

 
Intelligent Heating SolutionsBosch Thermotechnology Ltd.