Hello, all. New member, and kinda new to forging guy here. I have a job where I work six months on, six off, My six month 'vacation' is just about here. I have been planning a propane tank forge build for a while. I had planned on using the T burner plans for my heat delivery, but started looking more and more into the ribbon burners. I have the ceramic blanket, refractory, and IR paint, most of which I acquired from Wayne Coe. I also ordered the other refractory needed for the ribbon burner head. I also bought the blower Wayne recommended from a certain blacksmith supply company. I saw on Wayne's website that he recommends a six inch burner for the 20# tank. Here are my questions, (for now). Does the burner have to be three inches wide to perform at it's peak? Could you make the burner head, say, 2 1/2", or 2" wide? Also, to get the air from the blower to the forge, could you use 1 1/4" or 1 1/2" pipe?