Originally Posted by Donna D.
They don't sell horizontal propane tanks in Canada? I see this PDF Dan referenced is a Canadian document. What about big moho's that have horizontal propane tanks? Hummm.
Liquid propane expands about 200 times to a gas. If a tank that is normally used in a vertical orientation is laid down inside a car and a temperature change causes it to vent liquid instead of gas, as a liquid it could expand and literally fill the interior with propane gas. A tiny spark would cause a nice explosion. If a gas is vented much less would come out.
100 lb tanks must be weighed to fill as they have one less safeguard , so it is even more important to transport them upright.
Transporting propane in an enclosed vehicle should be avoided for this reason. This is why propane cylinders are mounted outside or in vented compartments.
Tanks designed for horizontal use need to be transported in a horizontal orientation I presume.
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