Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I thought I had this completely dialed in using 95% but after a lot of minutes of running, all of sudden I had a huge flare up and had to use a wet rag to put it out. Rather dangerous, I'd say... Many thanks to Olive on the wet rag idea.  Basically, the siphon effect. Were these ever designed to run 95%? From now on in this burner, I will run only run 75%.