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Fuel Comparison Chart
Physical Properties
Normal Atmospheric State
Boiling Point (in °F):
Initial
End
Heating Value:
BTU per gallon (Net LHV*)
BTU per Gallon (Gross**)
Cubic Feet (Gas)
Density***
Weight†
Octane Number:
Research
Motor
* LHV (Low Heat Value) is the more realistic rating.
** Gross Heat Value does not consider heat lost in the form of water during
combustion.
*** Density is given in "Cubic Feet of Gas per Gallon of Liquid".
† Weight is given in "Pounds per Gallon of Liquid".
Size of Propane Tank Required at Various
Temperatures When Kept at Least Half
Full
Given the gas withdrawal rate and the lowest average winter
temperature, an installer can specify the required LP storage
tank size:
Withdrawal Rate
50 CFH
100 CFH
150 CFH
200 CFH
300 CFH
INSTALLATION
Propane
Gas
-44
-44
83,340
91,547
2,500
36.39
4.24
110+
97
32°F
20°F
115
115
250
250
300
400
400
500
750
1000
Download from Www.Somanuals.com. All Manuals Search And Download.
Natural Gas
Gas
-259
-259
63,310
1,000
57.75
2.65
110+
10°F
0°F
-10°F
115
250
250
400
500
500
750
1000
1500
2000
16
-30°F
-40°F
250
400
500
1000
1000
1500
1200
2000
2500
4000
600
1500
2500
2500
5000
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