[AAAA]

if you are talking propane, you might consider methane. if it takes too much space, that is a bummer, but theoretically, it should be a great way of finishing up the last of recycling.

also, 12 volt can be run parallel to 110 volt electricity plugs and wires. almost everything can run better on 12 volt or less, because you don't have to deal with the wasted heat.