But better safe than experiencing the total collapse of civilization without the option of making a really nice sauté.
Here's another way of transporting propane, but this only works with the small containers. I've fastened this baby to my Extrawheel one-wheeled trailer.
As mentioned previously, I'd rather avoid two-wheeled trailers. I had a Bob yak for a long time, and even crossed large parts of the US with it, but alas, it ended up being stolen by some very evil people. The Bob had the advantage of a platform where you could fasten down your backpack, and on really difficult terrain you could strap backpack & trailer on your back, and carry the bike. The Extrawheel, however, is better in many other ways. It is excellent for carrying soft, bulky loads and groceries. Coupled up with some front panniers the Extrawheel is perhaps one of the best options for touring.
Boxy stuff is better left to the Xtracycle and Christiania.
Hermit's verdict: Perhaps the best trailer of them all, as long as the luggage is either small in size or somewhat malleable. And I've tried a lot of those trailers out there. I should either get a life or a driver's liscence.