Unconventional oven build - design help needed

[thebonnefire]

Driven by salvage sourced bricks, pavers, and iron, this is the “skeleton” of my design. Yes the roof is flat (probably going to angle it pent style?) and yes this is not going to function the same as a dome. But I want advice? How would you insulate? Do the roof? I was looking at having the opening transition and door made by metal fabrication.

This is all currently dry stacked. The octo shaped pavers are fire rated and can play into thermal mass I hope. Yellow bricks are fire bricks. Planning on doing door and roof with kiln shelves? Then over insulate the thing, then wire/mortar the outside maybe tile? What advice do you all have

[UtahBeehiver]

Yeah, I know these base/floor bricks, they are from the open hearth kilns of Geneva Steel, they will be super duty but they will not do well for insulating the floor also "really hard to cut". Most likely the oven wall bricks are the same super duty so they take their toll on diamond blades. The floor bricks will act as a heat sink and the oven will lose all the heat. Square ovens are not very effecient with hot and cold spots, I suggest you download the free oven pompeii from Forno Bravo to help you with your design. Ovens need to be insulate well and isolated from any material that will act as heat sink or the performace suffers greatly.