So on a bit of a lark I picked up this "pizza oven" last weekend.

Will sit on either a gas grill or a charcoal grill. Stone liner all around the inside of the cooking chamber and an opening at the back on the bottom for air circulation. I used it on the gas grill the other day. Pretty easily went over 600*. If I took the "flavourizer bars " off the grill it would get hotter as there would be less metal between the flame and the box.

Cooking chamber is 14.5" square. Pizza cooked in about 4.5 minutes, homemade dough and nicely crisped up but not charred or burnt.

Happy with it after one use.