I can't use an exit bag, as some have suggested, or mask, because of limited mobility in my shoulders, restricting the ability to lift something over my head. Degenerative conditions and busted shoulders.
So, the more I read about it, the more I'm liking the charcoal method. Initially, I was worried about smoke but now realise that smoke won't be an issue. I live off the grid, in the middle of nowhere, and don't usually buy charcoal or briquettes because I just use fallen timber. Now, I understand the difference.
I live in a caravan in the woods. No danger to others because I'm not close by another home and no one else lives here. It will be awhile before anyone realises I'm missing because I'm a bit of a hermit, since the "locals" in this tiny, rural town won't talk to you.
I will use metal buckets or large, clay plant pots, to hold the charcoal once it's ready, with bricks and concrete pavers under it so as to not burn the floor. Once the charcoal is white and not smoking, I will move it inside. How much will I need to fill a caravan (no annex / awning) with CO? I will block of door, gaps and windows.
I want to CTB before August. I've seen some mini portable BBQs in a discount, department store (won't name source) that are on sale at the moment. I might buy a few. Also, quality charcoal is on sale at the moment in some supermarkets too. I have the funds to get the right gear. I'm an old fart.
Just need to know how much I will need. No one will even know for awhile, so I want to do it correctly and not wake up in a vege state, unable to phone for help.
I'm kinda excited about this method.