Re: Well i quess im building an oven! Wood fired ovens rarely get above 1000 degrees F (540c). Used bricks are fine for most applications.
I don't get the foil layer at all. Aluminum foil disintegrates in contact with portland cement. Even if you found a foil that would last, why would you want it? In domestic insulation it's used as a vapor barier. Ovens get damp, and damp ovens take longer to heat up.
I used one layer of foil between my inner (refractory) arch and my outside decorative arch, to maintain a slip plane. I knew the foil would rot out, but I mostly didn't want those two parts mortared together.
Everything else sounds good. |