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Propane burns 91,547 b.t.u.'s an hour per gallon of propane. Depending on the b.t.u. output of the appliance you are running you should be able to calculate how many hours you can use your tank.

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12y ago
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14y ago

A 15 pound tank has about 3 gallons of propane in it, they don't fill them plum full for safety reasons. The gas has to expand. Or for every 5 pounds you get 1 gallon of propane.

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15y ago

If the tare weight is fifteen pounds it would be a twenty pound tank. Uh, twenty pounds is the answer.

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14y ago

The internal chemical energy for propane is 21624 BTU/ lbm. Then total stored nergy in 15 ib tank is = 324359 btu.

Ashish Nazar

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15y ago

15 lbs

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11y ago

15

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Q: How much should a 15 lb propane tank weigh full?
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