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Heating Values of Fuel Gases

Combustion heat values for gases like acetylene, blast furnace gas, ethane, biogas and more - Gross and Net values.

Fuel gases gross and net heating values:

Fuel Gases - Heating Values
GasGross Heating ValueNet Heating Value
(Btu/ft3)
(Btu/lb)
(Btu/ft3)
(Btu/lb)
Acetylene (ethyne) - C2H2 1498 21569 1447 20837
Ammonia (Liquefied, cooled compressed) 8017
Benzene 3741 18150 3590 17418
Blast Furnace gas 92 1178 92 1178
Blue water gas   6550    
Butane - C4H10 3225 21640 2977 19976
Butylene (Butene) 3077 20780 2876 19420
Carbon to CO2 14150 14150
Carbon to CO 3960 3960
Carbon monoxide - CO 323 4368 323 4368
Carburetted Water Gas 550 11440 508 10566
Coal gas 149 16500    
Coke Oven Gas 574 17048 514 15266
Digester Gas (Sewage or Biogas) 690 11316 621 10184
Ethane - C2H6 1783 22198 1630 20295
Ethyl alcohol saturated with water 1548 12804
Ethylene 1631 21884 1530 20525
Hexane 4667 20526 4315 18976
Hydrogen (H2) 325 61084 275 51628
Hydrogen Sulphide 672 7479
Landfill Gas 476      
Methane - CH4 1011 23811 910 21433
Methyl alcohol saturated with water 818 9603
Naphthalene 5859 17298
Natural Gas (typical) 950
-
1150
19500
-
22500
850
-
1050
17500
-
22000
Octane saturated with water 6239 20542 3170 10444
Pentane 3981 20908 3679 19322
Producer gas   2470    
Propane - C3H8 2572 21564 2371 19834
Propene (Propylene) - C3H6 2332 20990 2181 19630
Propylene 2336 21042 2185 19683
Sasol 500 14550 443 13016
Sulphur 3940
Toluene 4408 18291 4206 17301
Water Gas (bituminous) 261 4881 239 4469
Xylene 5155 18410
  • 1 Btu/ft3 = 8.9 kcal/m3 = 3.73×104 J/m3
  • 1 Btu/lb = 2,326.1 J/kg = 0.55556 kcal/kg
Volumetric Heating Values are based on standard temperatures and pressure of dry gas - 60 oF and 14.73 psi.
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