Commercially produced fuel may not always be available. Of course, we all know how to build campfires, but even natural fuel may be scarce, or a regular campfire may be too easily detected by those not welcome. Here’s a stove that uses small amounts of natural fuel to cooking advantage: Solo Stove
It (and less expensive knockoffs) are available from the usual: Amazon, eBay. What makes them fairly efficient is the updraft of heated air which burns much of the volatile gases given off by the burning fuel, This also cuts down on smoke.
There are even instructions for making such stoves from tin cans (search: “homemade wood gas stove”) or such. I’ve made a few, and they work, but the cans burn out after a while, and are prone to rust.
- This reply was modified 3 years, 9 months ago by L Tecolote.