You'll need to change all of the pilot light orifices to LPG size. You may have to replace the main oven burner assembly and the simmer burner/injector assemblies to accomplish this. (Essentially any part number with NG in the name should be replaced with the LPG equivalent.) The greatest difficulty may be finding the replacement parts, or paying for them; it may be more economical to sell the NG unit and purchase one already set up for LPG.
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You'll need to change all of the pilot light orifices to LPG size. You may have to replace the main oven burner assembly and the simmer burner/injector assemblies to accomplish this. (Essentially any part number with NG in the name should be replaced with the LPG equivalent.) The greatest difficulty may be finding the replacement parts, or paying for them; it may be more economical to sell the NG unit and purchase one already set up for LPG.