Uh! This question again…
Dear John,
DISCLAIMER: I am a technician, but I am not affiliated with PartsTOWN – nor beholden to TechTOWN for anything other than to give you advice that’s in your best interests.
You’re IN NEED of calling Imperial Range for the answer(s) you seek. Even I (as a technician) would call Imperial Range directly in order to get that information.
Converting to propane IS NOT a DIY project. They will probably give you the name/phone number of their authorized service provider in your area.
Their phone number is 951-281-1830.