Forum Discussion
Hikerdogs
Sep 12, 2017Explorer
dougrainer wrote:
In simple terms. LP LIQUID has a harder time VAPORIZING the required volume of GAS when in sub freezing temps. That is why blanket heaters and such may be needed on the tank. Also, except is very rare cases, BUTANE is not really available in the USA. Almost ALL USA LP production is PROPANE. Doug
The term LPG is used to describe both Liquid Petroleum Gas and Liquid Propane Gas. Be sure when you fill your tank you're getting Liquid Propane gas. Liquid Propane vaporizes at much colder temperatures than Liquid Petroleum Gas.
Liquefied Petroleum Gas does contain Propane gas. However it does not have to contain the same amount as the product sold as Propane.
To be labeled LPG the gas has to contain a minimum of 51 percent propane. The remainder can be Butane, propylene, and other gasses. While the Butane has more BTU's than Propane it does not vaporize well at low temperatures. Depending on the amount of Butane in the mix the gas may not vaporize below 34 degrees F.
Gas sold as HD5 Propane must contain a minimum of 90 percent propane and a maximum of 5percent propylene. This mixture will vaporize at minus 45 degrees F.
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