This came up during a fireplace discussion...
"Sound like a newer furnace you have their otter , Most gas furnaces have metal inshot burners that rust out from the propane fuel . Doesnt happen on natural but Id do a simple magnet check to see if their metal or stainless . Mostt he time the flames look bad on propane and its rusty burners . Another sign is a small dusting of rust under the front of the burners . Might need a mirror or ask your tech while hes there if they are ss or metal burners . Just another heads up on the problems with propane to watch for ."
Goodman GMH95, with propane conversion kit, first winter.
Opinions? Is this one more thing to worry about?