JeffyDee, hola!
Viking, Spirit, Hi!
been using gasoline stoves for years.
there's even a rare 3 burner version:
& the single burner, about the size of a large grapefruit:
i think i've ranted about these before.. lemmee see..
yep..
"i'm a die hard advocate of gasoline stoves.
you can get them from 1 to 3 burners, with 2 being common & easy to find used for $20 or less.
practice with the fuckers, away from anything flammable or consumable, until you get the art of lighting & regulation down.
they are cantankerous fuckers, too, & require cleaning, repair (pump seals, typically) & often enough replacement.
they are, however, the absolutely cheapest form of cooking you can do on the road, unless you decide to deal with propane tank swapping, multiple propane tanks or propane hose extensions, (to get to picnic tables).
the thing i like, even though propane by swap out may be as cheap, & def. cleaner, is that if you run out of fuel you only need about a pint of gasoline to do two decent meals, & you have a much better idea of how much fuel you have left..
but gasoline stoves are def dirtier & more inconvenient, unless you put in the time (&pain) to learn how to maintain the fuckers."
the one burner stoves are fairly heavy, and you absolutely *must* understand how they work, as well as bone up on properly maintaining them.. i did not have a painless experience, by any measure..
they are not simple, they are not clean, they are not light & they are not 100% reliable..
they do, however, when they work well, burn hot as all fuck, & you can feed 15 people with a 2 burner for 4 days straight ; )
once you understand them & how to fuck with them & what not to fuck with, then the one burner unit becomes a viable pack item.
unfortunately, since they burn a gasoline flame, they can't be used for direct grilling..
also, as a slant to the thread (since "naptha" is mentioned) i've seen the alcohol / wood DIY stoves posted, & they look pretty cool..
the thing is i suspect they don't burn hot enough to cook game.. i may be wrong, but i'm fond of some things being damn near burned..
that being said, i have some plans in my head for a *lightweight* gasoline stove, and i'm also curious about using true naphthalene as a solid fuel ('old fashioned' mothballs) in a beer can stove.
https://en.wikipedia.org/wiki/Naphthalene
the thing that makes the pressurized stoves burn so hot is the amount of burnable fuel delivered per second..
i've got an idea in my head for a simple pre-heater, to increase convective flow, and/or a 2 chamber mini that would burn scrap, yet effectively pressurize a main burner..