Steam Boiler Calculator — Calculate Steam Production & Efficiency

Steam Boiler Calculator

Calculate steam production, fuel consumption, and boiler efficiency for industrial and residential applications. Determine optimal boiler parameters based on pressure, temperature, and fuel type.

Step 1: Boiler Specifications

100 psi
350°F

Understanding Boiler Capacity

Boiler capacity is typically measured in horsepower (HP) or kilowatts (kW). 1 boiler HP = 33,475 BTU/hr = evaporating 34.5 lb of water per hour at 212°F.

Step 2: Operating Conditions

180°F
85%

About Boiler Efficiency

Boiler efficiency measures how effectively fuel energy is converted to steam energy. Typical efficiencies range from 75-95% depending on boiler type, age, and maintenance. Higher feedwater temperatures improve efficiency.

Steam Boiler Results

Summary
Fuel Comparison
Efficiency Breakdown

Steam Production Capacity

3,450 lb/hr
For 100 HP boiler at 85% efficiency
Fuel Consumption
3,850 BTU/hr
Thermal Efficiency
85%
Boiler Capacity
100 HP
Fuel Type
Natural Gas

Fuel Type Comparison

Fuel Type Energy Content Typical Efficiency Cost per MMBTU

Efficiency Breakdown

Boiler Efficiency Formula

Efficiency = (Steam Energy Output / Fuel Energy Input) × 100%

Steam energy output is calculated from steam enthalpy minus feedwater enthalpy. Fuel energy input depends on fuel type and consumption rate.

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