Pictures of 3 innovations
I have visited photobucket and uploaded 12 images of my oven under construction. The photos attempt to show 3 innovations that I have made during the construction of my 42" oven. The first is the hearth construction where I have a 4" layer of concrete in rebar on the bottom with 2.5" layer of vermicrete on top of the concrete, then a 57" diameter circle of concrete 2.5" thick on which the oven hearth bricks will sit surrounded by an insulating layer of vermicrete. Time will tell if it works. Another innovation is that of setting the correct angle on each course of bricks without the use of wedges. I found using wedges a very tedious chore so tried just laying down a trowel full of mortar on which to put the bricks. Initially I used the gadget seen in the "measuring angle" photo, but disbanded that idea after a while and just used my eye. The third innovation was to use the 34" ball within the oven as support. So far it has worked very well. After finishing a course I deflate the ball to the right size and lay the next course. The photos can be seen in my next posting. I put up only 4 images because the system couldn't handle 12 of them.
Cheers,
Davy
I have visited photobucket and uploaded 12 images of my oven under construction. The photos attempt to show 3 innovations that I have made during the construction of my 42" oven. The first is the hearth construction where I have a 4" layer of concrete in rebar on the bottom with 2.5" layer of vermicrete on top of the concrete, then a 57" diameter circle of concrete 2.5" thick on which the oven hearth bricks will sit surrounded by an insulating layer of vermicrete. Time will tell if it works. Another innovation is that of setting the correct angle on each course of bricks without the use of wedges. I found using wedges a very tedious chore so tried just laying down a trowel full of mortar on which to put the bricks. Initially I used the gadget seen in the "measuring angle" photo, but disbanded that idea after a while and just used my eye. The third innovation was to use the 34" ball within the oven as support. So far it has worked very well. After finishing a course I deflate the ball to the right size and lay the next course. The photos can be seen in my next posting. I put up only 4 images because the system couldn't handle 12 of them.
Cheers,
Davy
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