The baffle was in there and very rusty. I cleaned all the rust off with a drum sander on my Dremel. I did find a specification after I had already reinstalled it that specified a 1 7/8 inch recess to the bottom of the baffle from the bottom of the flue. I did not measure this because it was already running. I have turned it off now so it is cool enough to measure. It seems odd that that measurement would be critical but I will check it.
I know that the flue for the propane burner is welded to the same boiler as the pocket for the electric electrode but for some reason the heat from the gas flame is not heating up the flue as intended. The insulation and the metal holding it has not been disturbed and looks as new. I wonder if it is possible to get a bad weld by a beginner that is mostly slag or do you think they are welded by robotics that don't make mistakes. I guess I can check to see if a new baffle is available. Maybe the tolerance is too great on the sides of the old baffle and the heat does not linger long enough. I know when it is running, I can reach my fingers up to the top of the flue tube and there is a lot of heat coming out. It will burn you in a hurry.