Based on a handy tip from another Dorki I made one using foil covered ridged foam house insulation sheets. Easy to cut and put together with drywall screws and foil tape on the outside. Super cheap and disposable or disassemble and store flat when done. The foil and foam does start to show breakdown after a few uses but it is cheap and I did not end up with a big little used box in the corner of the shop.
I built it using 2 layers of 1/2. This let me ship lap the corners and make a double thick door that sealed well. I found that control of outside air is key to a good cure and proper cool down. a double layer glass window was handy but unnecessary. I found that had to watch the cook and cure.
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http://vimeo.com/29896988
“Those that can make you believe in absurdities can make you commit atrocities.” Voltaire.
"There is grandeur in this view of life...." Darwin.
The mountains are calling and I must go.
“The earth has music for those who listen”
Shakespeare.
You Matter.
(Until you multiply yourself times the speed of light squared. Then you Energy)
“We’ve got lots of theories, we just don’t have the evidence’.
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