Very neato keano ideas...I have some ideas that would help me get to that crusty bread...after seeing this. Thanks for sharing!

Can't find pictures if they were posted here.  Anyway, if you are member or want to look at, BWCA.com, search under "jello mold oven" words and it will pop up.

I made a jello mold oven with suggestions from "that other site" and added silicone to insulate the outside of it.  IMO, it made a big difference, especially in colder campouts.  You can buy a silicone baking sheet(s) set at Bed bath & beyond, or any where, that's just where I got mine, cut to fit.  You can use a rubber band on the outside of the silicone to keep in place, or "stitch" it together with wire.  Just push the wire thru or use needle to create holes.  It stays in place pretty well by itself, if sized right.  It is not melt proof thou, as I found out, and creates quite the mess if it gets too hot.   I think I posted pictures on here, can't remember thread name.

OT,
that's a interesting idea, sort of a "cozie" for the flashing oven??
ONE thing I found, with the SILICONE top, I don't think the heat loss is as great as a metal pan because the SILICONE stays cool enough to touch??

I have been looking at the Outback oven and they use an insulating material to help hold the heat in. One thing about this flashing oven is it does take a while to cook things and I think it is because of heat loss.
I have a friend that is a fire chief for a small town fire dept. They are getting new turn out gear (fire proof jackets) and I asked if I could have one of the old ones. I was thinking about tearing it apart and making a cover for the oven. I would have to find some Nomax thread to sew it and it will probably be heavier that I want but if I get it done I will let you know if it works.

I made three of the Flash Ovens this past weekend, one for my brother and two for me.  They weigh 12 oz (each) including skewers, heat diffuser, and oven thermometer.  Home Depot has various height rolls of aluminum flashing from 10" to 20".  Betty Crocker has some muffin mixes in a bag that cost $1 and all you add is 1/2C water.  I made the lemon poppyseed (small) cake from the mix and it turned out great.  Easy to make, cheap, and works good.

Ok one more idea. If you want to reduce it by a few grams replace the bolt and wing nut with those brass pin things that they use to put papers together. They are split and you just put them in the hole and spread them out.
PS. The bolt works better.

After reading dd post of skewers for his reflector oven, i thought i have a whole package of them in kitchen drawer unopened!!
i still think i'll keep bolt/wingnut, weighs nothing and gives a little more stability to cylinder.
But the skewres would make good rack material.
its amazing how many good ideas are floating around here and how many people are willing to share them

The reason he used threaded rod was to keep them from moving around as the threads fit into the flashing and keep them from falling out. Something else you might use that are made for cooking but might be a little heavier are skeweers like they use to serve grilled shrimp in resturants. They are chrome plated and about the right length. You could take a file and file a groove in them so as to set on the flashing and not move around.

you might be right about not burning off in oven
I didn't notice any funny taste or odor in the cookies I baked but maybe I'll just play it safe and get some aluminum rod and not have to wonder about it