Post by dilby on May 25, 2018 17:12:41 GMT
Hi all -
I'm planning to build my own wood fired oven, and have come up with an initial plan which I've pretty crudely drawn up in Sketchup.
In short I want to be able to cook a variety of things, not just pizzas, so I went with a box shape. I've already got the base built which is a wooden
frame and part of an existing garden bed structure, and the door would be insulated. I plan to put a removable shelf in, plus some holes in each side
to put a rotisserie through and just fill with threaded bolts when not in use.
But I'm really not sure how to handle the insulation/concrete mix. I was planning to have the base as a concrete slab that sits on the aforementioned
wooden frame, with a slate slab embedded in the bit that will be in use, as I have some left over from my fireplace and assume slate is better than
concrete as a cooking surface (is that right?)
So does anyone have any advice or know of any info regarding insulation/heat loss properties of concrete mixes and cavities? I really want to be able
to slow cook, so retaining heat is important. In my model I've done a cavity that i'd fill with insulation but it'd be much easier to only have to cast
it as one piece!
So specifically:
1) Is there a way to make the equivalent thickness of concrete as effective as splitting it with a cavity if the correct mix is used, and what would that be?
2) Does my mix really need to be heat/fire resistant?
3) Are there any specific flaws/room for improvement anyone can spot with my initial design?
Thanks!
I'm planning to build my own wood fired oven, and have come up with an initial plan which I've pretty crudely drawn up in Sketchup.
In short I want to be able to cook a variety of things, not just pizzas, so I went with a box shape. I've already got the base built which is a wooden
frame and part of an existing garden bed structure, and the door would be insulated. I plan to put a removable shelf in, plus some holes in each side
to put a rotisserie through and just fill with threaded bolts when not in use.
But I'm really not sure how to handle the insulation/concrete mix. I was planning to have the base as a concrete slab that sits on the aforementioned
wooden frame, with a slate slab embedded in the bit that will be in use, as I have some left over from my fireplace and assume slate is better than
concrete as a cooking surface (is that right?)
So does anyone have any advice or know of any info regarding insulation/heat loss properties of concrete mixes and cavities? I really want to be able
to slow cook, so retaining heat is important. In my model I've done a cavity that i'd fill with insulation but it'd be much easier to only have to cast
it as one piece!
So specifically:
1) Is there a way to make the equivalent thickness of concrete as effective as splitting it with a cavity if the correct mix is used, and what would that be?
2) Does my mix really need to be heat/fire resistant?
3) Are there any specific flaws/room for improvement anyone can spot with my initial design?
Thanks!