Under the oven is where the heating element and dutch oven go, you want to be able to access this area easily to add more wood and start the gas element, I will be having a metal door that will keep the smoke in so it rises to the oven but allows easy access.
Also you should think when building this that there may/WILL come a time when that gas element breaks down and need replacing, as this is a brick structure it will last a LONG time so make sure you think about this and don't enclose the gas in bricks.
At this stage I also think I will need to create a metal enclosure under the oven to ensure the smoke goes into the oven and not out the side and up the bricks, for this I plan to use the metal panels I have taken off the sides of the oven. Tin snips should do it to cut them to size.
