I have built one oven and am now planning to build my second. This is a non-kit oven with a firebrick core similar to an Alan Scott design. I'm not planning to do the suspended hearth as he does but instead place it "on" the cement block base separated by 4" of vermicrete and hopefully 2" of foam board. The primary use of the oven will be for bread and I hope to get as many bakes out of it as possible, my last was not very well insulated and I was only getting 4-5 bakes out of it.
My questions pertain to the order in which I will do the different "layers" of the hearth. My plan is to do the block stand, then the vermicrete, the foam layer and then the hearth slab with the firebrick hearth on top of that. Will the foam layer support all the weight that will be placed upon it without issues? I plan to do 22-26 firebricks across (on edge) for the hearth width and 9 firebricks deep. I'd like to have 4.5" of cladding on the sides and about 6" on the dome area. Would I be prudent to also use some sort of ceramic blanket on the sides/dome cladding? Do I need to add loose vermiculite over this blanket layer if I were to do that? My plans are to do a steel stud structure around the back part of the oven with steel siding, so I'd have the open air space to fill around I think.
Any thoughts/comments are welcome. I've done this once, as I've said, but I'm still not an expert by any means. I do computer work by trade so this is a leap for me to move into "designing" an oven.
Thanks,
Ed
My questions pertain to the order in which I will do the different "layers" of the hearth. My plan is to do the block stand, then the vermicrete, the foam layer and then the hearth slab with the firebrick hearth on top of that. Will the foam layer support all the weight that will be placed upon it without issues? I plan to do 22-26 firebricks across (on edge) for the hearth width and 9 firebricks deep. I'd like to have 4.5" of cladding on the sides and about 6" on the dome area. Would I be prudent to also use some sort of ceramic blanket on the sides/dome cladding? Do I need to add loose vermiculite over this blanket layer if I were to do that? My plans are to do a steel stud structure around the back part of the oven with steel siding, so I'd have the open air space to fill around I think.
Any thoughts/comments are welcome. I've done this once, as I've said, but I'm still not an expert by any means. I do computer work by trade so this is a leap for me to move into "designing" an oven.
Thanks,
Ed
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