ClueLuma

Fuel input for target steam load calculator

At fixed useful output, higher efficiency reduces fuel inversely.

Units
qinput=qrequiredηq_{\text{input}} = \frac{q_{\text{required}}}{\eta}

Calculator

Enter the values you know and leave one box empty. Calculate finds the empty one, the result or any input.

Btu/h
—
Btu/h

Worked example

Given

  • qrequiredq_{\text{required}} = 100 Btu/h
  • η\eta = 0.85 —
qinput=1000.85≈117.6q_{\text{input}} = \frac{100}{0.85} \approx 117.6

Symbols and units

SymbolMeaningUnit
qinputq_{\text{input}}required fuel inputBtu/h
qrequiredq_{\text{required}}required useful heatBtu/h
η\etaboiler efficiency at load—

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Results are estimates for study and screening. Check the inputs, units and assumptions before you use them for design, billing or contract decisions.