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So I am understanding the furnace is currently set up for LP and you want to go back to natural .Correct?
Let me see what I can find. The furnace comes from factory as natural according to my spec sheets and they list the conversion kit to change to LP, but not from LP to Nat. Give me a few minutes to research.
Since the furnace was originally shipped set up for natural, looks like the only kit available is to change to LP.
What we may have to do is order the orifices and gas valve spring separately rather than a kit.
If you would lie help doing that way, give me model on valve.Let me know if it has the Honeywell valve and model on valve
You will need the 661045 (.45) orifises one for each burner
AS for the gas valve, I am showing the VR8215A1289 as original.
Again it was shipped as natural with a kit to convert to LP so we might find an LP back to Nat kit or you may have to replace valve .
Good news. The LP to Natural KIt is available for the valve
If you want to verify on Monday that the valve is OEM that is fine. Just let me know and we can go from here on Monday.Thanks for letting me work with you.When we are finished, if my answer has been polite, professional,and thorough, please click one of the ratings . If you still need help let me know!.Expert is not paid for assisting you until you rate answer.Feel free to follow up for 30 days at no additional cost. Bonus always appreciated if you feel justified