I have cruised the FB forum and seen many good builds. I will be starting mine soon, and want to cover some design considerations. I am going for a lightweight/durable oven that will work well on a trailer. My trailer will be an old truck bed trailer. Here's what I am thinking. Build a metal frame to hold a 4 foot by 4 foot metal tray made of 3/16 metal and 3 inches deep. Lay FB board in the tray. Place 4.5 by 9 inch fire brick directly on the FB board. The firebrick will stick up about an inch above the tray. The oven will be refractory cement over a sand form, possibly in two pours: 1. with a short vertical wall similar to Joey's and then 2. the dome over a sand form. I want to make the refractory pour as thin as possible. The refractory is the heaviest/most expensive componenet. Can I go 2" thick? Needles or no needles, and how much if I do need them. Then a single layer of FB blanket. What is recommended to go over the FB blanket as a final layer: percrete? stucco?. Does this seem to hit the right balance of strength/weight/insulation/mass/heat up time. Any advice is much appreciated.
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Mobile refractory pizza oven build/design