I think, it may be wet or dirty propane.
This only occurred after I had this tank refilled at Home Hardware, and the kid that was filling the tank was very untrained, I wasn't there when he filled it but he was reading instructions for tank filling. I don't know if perhaps somehow moisture got into the tank, or if maybe he didn't purge the tank first or maybe he over filled. He even slammed it into the wall a few times trying to knock ice off of the underside of the tank and put a small dent in the tank.
An old friend mentioned that he has a propane at his cabin and he has had yellow flames with dirty propane before, but I don't know if that's legitimate or not. I am thinking about letting this tank burn off and then filling it at a different location to see if it reoccurs.
Thoughts?
