I'm trying to make a pizza oven, but rather than brick or refractory, steel. I want to use a hemisphere and have it fed by pellets. I've been told by people on wood oven forums that I won't get the heat needed. I'm wanting 900 F at the hearth of the oven, using pellets for heat (roughly 8000 BTU/lb) What I can't find anywhere online is scientific proof that it will or won't work. I'm looking to make a dome of 30" or maybe 36" inside diameters. There will be one chimney for air flow.