Originally Posted by SuperJETT
I keep thinking about a thread or two on here where members were discussing an inner/outer drum setup and filling the gap with diatomaceous earth mix to make a kamado style UDS.
We have thousands of drums at work, 10/30/55 gallon sizes and I'm considering modding my 55 gallon UDS with a 30 inside then filling the gap with fine grain play sand. Even better would be Daytona Beach sand, that stuff packs like crazy.
My plan would be to bolt the 30 gallon inside with around a 2" gap on the bottom and centered then pour the sand with it on an angle and shake/vibrate it to get good fill. The cooking grate would sit on the 30 gallon's lip since I think they are 18.5" or so diameter and I rarely use the outer inch or two of the grate now anyway.
My guess on benefits is lower fuel burn rate and more stable temps.
Thoughts? Has anyone tried it yet?
Sand is not a good insulator.
If I were doing this I would use a mix of portland cement and vermiculite......I don't remember the exact ratio. I've used this mixture to insulate parts of my pizza oven and the mixture when cured weighs very little. You can use either vermiculite or perlite which can be found in most nurseries, including Home Depot.