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

That's a good looking flame you have there. If mine was that good and blue, I'd of never started this post.
You seen my video. If I adjust the flame to that height yours is producing, the top half would be yellow
and the bottom of the boiler would be covered in soot. I'm not using some odd brand of fuel, it's Ronson,
  MADE IN USA.