Kev, I love your videos, but no way I would use propane or butane for a BOB. I carry a MSR whisperlite international. 100% field serviceable, and runs on camp fuel, kerosene, jet fuel and most importantly, unleaded. I also carry a three foot length of clear plastic tubing for "foraging" fuel. My 1 liter bottle lasts about a week of two hots a day, and I have two other smaller (20 oz) fuel bottles for longer treks into the woods. (yes, I've left my tent at home in order to carry more food, I kinda like getting out there)
If you don't want to spend the cash on the MSR, which is light and breaks down quite small, you can also go for something like the coleman peak one multifuel which sells much cheaper, and still runs on naptha (camp fuel) kerosene or unleaded. My mom has my old one in her garage, loaded into a pot next to her freezer (half full of frozen gallon jugs of ice to keep stuff cold when power goes out) every now and then when I head down to visit, we use it to cook next to the BBQ so she will remember how to use it.
Eventually, I'd like to get one of the primus multifuels that run on diesel. Initial tests indicate they will run on biofuel. There is even a campstove made in India that is a 100% grease burner.
Seriously though, I hate disposable propane and butane canisters. You can;t refill them, so they get tossed, and since you can't ship fuel, you have to find a place that sells them when you run out, which can be a problem with the nearest store 15 miles away and you on foot.