Alpha E-Tec 33 Hybrid - Technical Performance Data Boiler Combustion Features

Alpha E-Tec Hybrid - Technical Data
Gas flow rates refer to the NHV at the temperature of 15° C and pressure of 1013 mbar.
Flue temperature values refer to an air inlet temperature of 15°C and flow/return temperature = 80/60°C.
Methane (G20) LPG (G31)
Combustion efficiency 100% Pn (80/60°C) % 97.8 97.8
Combustion efficiency P min (80/60°C) % 97.8 97.8
Effective efficiency at 100% Pn (80/60°C) % 97.8 97.8
Effective efficiency P min (80/60°C) % 95.5 95.5
Effective efficiency at 100% Pn (50/30°C) % 106.1 106.1
Effective efficiency P min (50/30°C) % 106.1 106.1
Effective efficiency at 100% Pn (40/30°C) % 108.2 108.2
Effective efficiency P min (40/30°C) % 108.3 108.3
Chimney losses with burner on (100% Pn) (80/60°C) % 1.7 1.7
Chimney losses with burner on (P min) (80/60°C) % 2.2 2.2
Chimney losses with burner off % 0.02 0.02
Casing losses with burner on (100% Pn) (80/60°C) % 0.2 0.2
Casing losses with burner on (Pmin) (80/60°C) % 2.3 2.3
Casing losses with burner off % 0.34 0.34
Flue gas temperature Maximum Heat Input °C 70 70
Flue gas temperature Minimum Heat Input °C 64 63
Flue flow rate at Central Heating Maximum Heat Input kg/h 38 37
Flue flow rate at Maximum Domestic Hot Water Heat Input kg/h 44 43
Flue flow rate at Minimum Heat Input kg/h 8 7
CO
2
at the Maximum Central Heating Heat Input % 9.70 11.40
CO
2
at Maximum Domestic Hot Water Heat Input % 9.70 11.40
CO
2
at Minimum Heat Input % 8.80 10.60
CO at Maximum Heat Input mg/kWh 321 316
CO at Minimum Heat Input mg/kWh 5 5
NO
x
at the Maximum Heat Input mg/kWh 59 85
NO
x
at Minimum Heat Input mg/kWh 34 55
Weighted CO mg/kWh 20 -
Weighted NO
x
mg/kWh 35 -
NO
x
class - 6 6
Intake/exhaust available head (min-max flow rate) Pa 2 - 240
3.2 TECHNICAL PERFORMANCE DATA BOILER COMBUSTION FEATURES
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