Fuel Comparison Chart; Size Of Propane Tank Required At Various Temperatures When Kept At Least Half Full - Briggs & Stratton 40213 Installation And Start-Up Manual

Fuel Comparison Chart

Fuel Comparison Chart
Physical Properties
Normal Atmospheric State
Boiling Point (in °F):
Heating Value:
Density***
Weight†
Octane Number:
* 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:
Required Propane Tank Size (Lowest Average Winter Temperature), in Gallons
Withdrawal Rate
50 CFH
100 CFH
150 CFH
200 CFH
300 CFH
INSTALLATION
Initial
End
BTU per gallon (Net LHV*)
BTU per Gallon (Gross**)
Cubic Feet (Gas)
Research
Motor
32°F
115
250
300
400
750
Butane Propane
Gas Gas
32 -44
32 -44
94,670 83,340
102,032 91,547
3,264 2,516
31.26 36.39
4.81 4.24
94 110+
90 97
20°F 10°F 0°F
115 115 250
250 250 400
400 500 500
500 750 1000
1000 1500 2000
17
Natural Gas
Gas
-259
-259
63,310
1,000
57.75
2.65
110+
-10°F -30°F -40°F
250 400 600
500 1000 1500
1000 1500 2500
1200 2000 2500
2500 4000 5000