What Is a 500-Gallon Propane Tank?


Quick Answer

A 500-gallon propane tank is a steel storage tank that holds liquid propane gas for residential use. The 500-gallon term means the tank has a water capacity of 500 gallons, according to Midway Gas. It must be safely located outside and away from the house.

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What Is a 500-Gallon Propane Tank?
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Full Answer

Like water, propane expands and contracts with changes in the temperature; however, propane can expand up to 17 times the amount that water does at the same temperature. For safety a propane tank is filled only to 80 to 85 percent of its total capacity, or 425 gallons; this allows space for expansion and contraction. A propane tank has a gauge to show approximately how much propane is left in the tank and a hand wheel to cut off the supply of propane to the house.

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