[wongarsu]

For cooking, parabolic mirrors might work quite well. A bit bulky and dependent on weather, but very powerful, low maintenance and cheap. You could still use the efficient wood stove in the rainy season.As long as you don't burn it faster than it regrows wood is a fantastic CO2-neutral fuel that they already have access to.

[dougmany]

These guys have ovens and roasters: https://lytefire.com/en