oven floor help

[ycart]

I am building an oven and I am confused a little about the floor. I have a 4 inch concrete base and I was going to make a 4 inch Vermiculite/cement on it should I do another layer of concrete on the Vermiculite layer or build the fire bricks on it ? Also should the sides fire bricks be on the first slab or on the last one ? It is going to be a barrel oven.
thanks

[Nic The Landscaper]

Re: oven floor help

Place floor bricks directly over vermicrete and place wall bricks on vermicrete as well. Basically the idea is to completely isolate the firebricks in insulating layers.

the only time that I would stray from the above prescribed method is if it were a high production oven that will be fired daily, and then I would just add more fire brick for the extra mass.