Holly monkeyballs! This is why I posted the question, to keep from blowing up myself and the back yard. I did not realize there was a risk of flashback into the tubes. The blower I have on hand isn't super powerfull so I defanitely need to redo my plans. I am going to look into the ribon burner design because of my flashback/explosion issue. I thank you, and my wife and kids thank you!