Back to Calculations
Boiler Efficiency & Fuel Consumption Calculator
Calculate boiler efficiency and estimate fuel consumption for steam boilers based on capacity, pressure, feed water temperature and fuel type.
Fuel Consumption Calculator
Estimated
kg/h
barg
0.0 barg
°C
40 °C
%
Estimated Fuel Consumption
—
Enter values to calculate
Heat Requirement
—
kcal/kg
Steam Enthalpy, hg
—
Feed Water Enthalpy, hf
—
Absolute Pressure
—
Fuel NCV
—
Boiler Efficiency Calculator
Linked / Direct
kg/h
barg
0.0 barg
°C
40 °C
—
Boiler Efficiency
—
NCV basis
Effective System Efficiency
—
Ref. water at 20°C
Steam Enthalpy, hg
—
Feed Water Enthalpy, hf
—
Fuel Input Energy
—
Net Steam Energy
—
Important Notes
These calculations provide estimates for engineering purposes. Actual values may vary based on specific boiler design, operating conditions, and fuel quality.
Boiler Efficiency = [Steam Capacity × (hg − hf_actual)] / [Fuel Consumption × NCV] × 100
Effective System Efficiency = [Steam Capacity × (hg − hf_at_20°C)] / [Fuel Consumption × NCV] × 100