At what point does propane become cheaper to run than gas?
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Scamper said:I would imagine you could convert to CNG much like you can convert between CNG and LPG for your stovetop--you just meter in less CNG since it has more energy than LPG.
However, LPG (liquified petroleum gas) and CNG (compressed natural gas) are two different things when it comes to storage. You can put a lot of LPG in a storage tank becuase the gas liquifies under pressure, thereby consuming much less space in the liquid form (you only pull off the gaseous layer when using the BBQ fuel--some liquid gas vaporizes under the lower pressure caused by use to fill the space back up and repressurize). CNG on the other hand won't liquify, so a tank of CNG will likely get you only far enough from home to be really pissed that you have to walk back