Originally Posted by BigBellyBBQ
think about the heat asbortion rate of a masonary build and in my opion, the fire box should be sealed with plate and under your main cooking chamber because as you stated "consumed a large amount of wood.." you must keep flues open....the steel plate will help transfer the heat and the masonary will protect / insulate..I used 1/2" boiler plate in mine.. if you have a 500 fire box and cant hold 250 tells me you are not efficient in transfer...smoke really does not cary heat unless your moisture is high..ghood luck..
Ok, thank you, I think you are on to an answer, but please explain to me in detail what you mean. Are you saying that I should line it with metal on the interior. I was thinking about that, the fire now just goes straight to the brick and cement with no radiator deflector. Would a simple sheet metal deflector keep temps inside rather than absorbing into pounds of cement and brick ?