You might want to check out The Sportsmans guide.I purchased 2 Swiss Volcano stoves for 20 bucks.They weigh 14oz,Made entirely of Aluminum,each comes with an aluminum bottle(aprox.20oz) with a cork.With a Hardwood tinder fire,It boiled that bottle full of water in about 7 minutes for me.I used Fatwood slivers to get the oakwood going.I'm thinking of Modifying 1 & Keeping the other intact.Good luck,& I have No Affiliation with Sportsmans Guide!