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1 gallon of Propane ~= 4.23 lbs ~= 91500 Btus

1 lbs of Propane ~=22000 Btus

20 lb tank of propane holds approx 4 gallons of propane (366000 BTUs)

Your grill will last 366000 BTUs/ Grill BTU output hrs

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โˆ™ 2007-12-18 20:07:34
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Q: How long on average does a 20 lb propane gas grill tank last?
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