We had to convert the range from natural gas to propane.  The nozzles on the cook top were easy to change over.  The instructions for the oven were unclear, making it more difficult.  The instructions said to remove the door.  When we tried to replace the door after changing the nozzles, we couldn't figure out how to put it back on.  There were no instructions for replacing it.  We called a professional appliance repairman and he couldn't figure out how to do it either.  Other repair men refused to even look at it.  The store we bought the range from will replace it, but we've been without an oven for over a month.