DESERTFOX..
i have an older model Zip stove..the battery is in
a case below the stove..they work very well and toss out
alot of heat like a blacksmiths forge..the only drawback
is that you need a ready supply of wood small enought to
drop into the burner..pine cones and such work well of course.
i know when i'm camping it's sometimes a chore to find small
sticks for kindeling,so to use this you would need a heavy
knife or small axe to keep yourself in chips and chunks..
if you had rechargeable batterys and a solar charger you
keep the thing useable long after gas supplys had run down.