1. There should be plenty broken up press board after the apocalypse. It is apparently quite flammable but sometimes gives off bad emissions. Perhaps you should set up a website where people can print a guide to press board emissions, so we all will know which to cook foods with and which to only heat with.
2. And there should be plenty of auto tires. Here's a fella who needs only a few tires each day to heat a 12' x 16' corrugated metal siding workshop:
I dunno:
1. There should be plenty broken up press board after the apocalypse. It is apparently quite flammable but sometimes gives off bad emissions. Perhaps you should set up a website where people can print a guide to press board emissions, so we all will know which to cook foods with and which to only heat with.
2. And there should be plenty of auto tires. Here's a fella who needs only a few tires each day to heat a 12' x 16' corrugated metal siding workshop:
https://www.farmshow.com/view_articles.php?a_id=1072
Another article with photos:
https://www.farmshow.com/a_download_page.php?aid=MzI4Nw==
3. Finally we see:
"Study Shows Dangerous Plastics Are Being Used As Fuel To Heat Homes":
https://www.slashgear.com/2075676/plastic-fuel-burning-heat-...
So I don't see a problem finding dry combustible fuel, In fact gathering fuel will be somewhat like gathering manna in the desert!8-))