Fuel-Gas Analysis For Heating Value And Combustion CalculationsadminApril 28, 2026Calculators Fuel-Gas Analysis for Heating Value & Combustion Calculations Molecular Weight (g/mol): Lower Heating Value (MJ/kg): Composition (%): Methane (CH₄) Ethane (C₂H₆) Propane (C₃H₈) Butane (C₄H₁₀) Calculate U.S. Department of Energy – Hydrogen Production Heating Values of Fuels – Engineering ToolBox