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100 LB. Cylinders<br />
How Many Are Required<br />
“Rule of Thumb” Guide for<br />
Installing 100 Lb. Cylinders<br />
For continuous draws where temperatures may reach<br />
0ºF. Assume the vaporization rate of a 100 lb. cylinder<br />
as approximately 50,000 BTU per hour.<br />
Number of cylinders per side = Total load in BTU<br />
50,000<br />
Example:<br />
Assume total load = 200,000 BTU/hr.<br />
Cylinders per side = 200,000 = 4 cylinders per side<br />
50,000<br />
Vaporization Rate - 100 Lb. Propane Cylinders<br />
(Approximate)<br />
Lbs. of Maximum Continuous Draw In BTU Per Hour At<br />
Propane Various Temperatures In Degrees F.<br />
In Cyl. 0ºF 20ºF 40ºF 60ºF 70ºF<br />
100 113,000 167,000 214,000 277,000 300,000<br />
90 104,000 152,000 200,000 247,000 277,000<br />
80 94,000 137,000 180,000 214,000 236,000<br />
70 83,000 122,000 160,000 199,000 214,000<br />
60 75,000 109,000 140,000 176,000 192,000<br />
50 64,000 94,000 125,000 154,000 167,000<br />
40 55,000 79,000 105,000 131,000 141,000<br />
30 45,000 66,000 85,000 107,000 118,000<br />
20 36,000 51,000 68,000 83,000 92,000<br />
10 28,000 38,000 49,000 60,000 66,000<br />
This chart shows the vaporization rate of containers in terms of the temperature<br />
of the liquid and the wet surface area of the container. When the temperature is<br />
lower of if the container has less liquid in it, the vaporization rate of the container<br />
is a lower value.<br />
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