HI Carla,-
First off, I recommend a search for a used down sleeping bag or two, to survive the cold in. I've used big plastic bag vapor barrier ( rule of thumb: Put VP on warm side) within a sleeping bag in very cold weather to great effect - I was waking up with cold feet, ankles and calves; with bag, woke up with warm toes. Warning - suffocation hazard.
Second, don't rocket stoves burn fast and clean? Don't TLUDs burn slow and almost as clean?
I imagine a two-can TLUD stove might be slowed down by covering its
primary air intakes with a sheet metal band ( from another tin can or beer can?) that could be slid up and down to adjust primary intake air.
Secondary air, always unrestricted, completes combustion.
About TLUDs (in case some haven't heard of them):
Microgasification: What it is and why it works
https://woodgas.com/wp-content/uploads/2022/01/BP53-Anderson-14.pdf [2007]
See two-can TLUD in photo on page 6 of :
https://woodgas.com/wp-content/uploads/2022/01/TLUD-History-V2-17FEB2016.pdf
Some videos:
https://www.youtube.com/watch?v=Rzu3BxiZpGg Dr TLUD 2013
https://www.youtube.com/watch?v=bmkadnjjO5k
https://www.youtube.com/watch?v=BAzAeZZDQhg
I think TLUDs can be fueled with wood pellets, a cheap, easy fuel that could store in that ammo box and stay dry. Sawdust won't let through enough air to allow continued burning, I believe. Wood chips, dried, may be ideal, Or pine cones or pine dead branches, snapped off.
Brian
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