Hey all, cheerz for having me. In my 1st post I'm turning a 22" kettle bbq turned upside down into a WF pizza oven. By the time I fit castable refractory with wool there won't be much cooking space left. Hence why I'm looking at a Rocket burner to fuel it. This would give me a cook area of 350x350mm using 4& 1/2 firebricks as the base. Plenty of access for heat travel on the back & sides while at the same time preheating the base. I have up to a 200mm hole centred in the base available to use. What I'm hoping for is your knowledge regarding if this is suitable for the heat feed into the oven or should one cut back on the diameter for a more precise heating point. The heat tube will also be insulated with Castable Ref. Any thoughts welcome. Will post pics once I started which is shortly👍 Cheerz for your time.