What do I need to convert back to natural gas from propane.
To convert the unit back to Natural, you will need to have the natural orifices for the top. The Front left orifice is part number 316237902, the left rear 316237901, the right rear 316237903 and the right front 316237900. To convert the bake and broil you would need to loosen the orifices 1 1/2 to 2 turns and flip the regulator from LP to Natural.
What parts do I need to change this stove from propane back to natural gas? Do I need to change the anything inside the regulator, or just the top burners?
To convert the unit back to natural from LP you will need the top burner orifices. The Left rear is part number 316237901, right front 316237900, Left front 316237902, and right rear 316237903. The bake and broil orifices you will want to loosen the orifice 1 1/2 to 2 turns and open the air shutters. The regulator cap will need to be flipped from LP back to natural.