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Floor design and materials
I've just made an oven floor that works from an insulation perspective, as below it, after hours of really hot fire, it's still cold.
From the bottom:
1) Sheet steel ( but when I build a Pompeii oven it will be wood decking )
2) About 75mm 5:1 vermiculite grade 4 and Portland cement. I' d read that was better for structural integrity.
3) A course of ordinary block paving bricks. They are only about 24 pence each. Then with the bricks on the vermicrete, I left 48 hours to cure. My thinking is that if the bricks crack, I'm not concerned, they are entirely surrounded and going nowhere.
4) 25mm heat resist screed, tamped down flat. 48 hours curing time.
5) Loose laid quarry tiles. These can just be picked out and replaced.
The fire is lit on the quarry tiles.
So far so good, and it holds heat for a couple of hours.
The photo shows two ovens.
1) The Pizza Oven cooking area on the top.
2). The fire lighting area with heat resist screed over insulation and block paving, the quarry tiles not yet on.
It's not brilliant, but heat goes up from the bottom area both directly onto the top quarry tiles - and also round the sides and back inner wall and down onto the tiles. Sadly, the top door needs to be closed to cook pizza in3 minutes, which makes them taste too smokey to begin with. But it's way better than with no insulation.
A question or two:
1) do you think this will be OK for the floor of a Pompeii style?
2) Is there a difference between quarry tiles and terracotta tiles?
Thanks. Feel free to laugh!
From the bottom:
1) Sheet steel ( but when I build a Pompeii oven it will be wood decking )
2) About 75mm 5:1 vermiculite grade 4 and Portland cement. I' d read that was better for structural integrity.
3) A course of ordinary block paving bricks. They are only about 24 pence each. Then with the bricks on the vermicrete, I left 48 hours to cure. My thinking is that if the bricks crack, I'm not concerned, they are entirely surrounded and going nowhere.
4) 25mm heat resist screed, tamped down flat. 48 hours curing time.
5) Loose laid quarry tiles. These can just be picked out and replaced.
The fire is lit on the quarry tiles.
So far so good, and it holds heat for a couple of hours.
The photo shows two ovens.
1) The Pizza Oven cooking area on the top.
2). The fire lighting area with heat resist screed over insulation and block paving, the quarry tiles not yet on.
It's not brilliant, but heat goes up from the bottom area both directly onto the top quarry tiles - and also round the sides and back inner wall and down onto the tiles. Sadly, the top door needs to be closed to cook pizza in3 minutes, which makes them taste too smokey to begin with. But it's way better than with no insulation.
A question or two:
1) do you think this will be OK for the floor of a Pompeii style?
2) Is there a difference between quarry tiles and terracotta tiles?
Thanks. Feel free to laugh!
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