I've been testing what will burn enough to boil water. Shooter z made the best suggestion with the hand sanitizer but if you can't find hand sanitizer, rain x works great. Just cut about 1 or 2 inches off a aluminum can and light it. I know it cost more but I had some in my shop and had to try it. It makes a good hot flame as well. It just don't last as long. It might do well as a jet burner but I have not had time to test it.