Fire Brick for 2 tier

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How many of you have wanted to do something in a pan (like scalloped potatoes) while running a hot direct fire?[p]Someone else's post was using fire brick to elevate a pizza stone.[p]The other day I was doing steak on a hot fire. I the set 2 fire brick right on top of the other side of the grill & set the pan of par cooked potatoes right on top of them. They cooked perfectly without scorching the food to the bottom of the pan.