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One major difference between the two is energy density. LPG (mostly propane and butane but also contains a significant amount of other stuff) has about 2.4x the energy as natural gas (mostly methane, but ethane and propane are also present). So, you should consider that along with the cost. If you can get natural gas for about 2.4 less (price-wise) per ...


Both systems operate at different pressures. Depending on the appliance, there could be different orifices, burners, regulators, and fittings. Depending on the appliance, a conversion kit may be available from the manufacturer. Though some appliances may not be convertible. Even with a conversion kit, it may be cost prohibitive to convert some appliances.

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