Ater getting the idea off this forum I have made about 20 mini-stoves using cat food cans and wax. I have tried several different types of wick material including 1" lantern wicks and strips of cardboard coiled inside the can. I tried different types of cardboard including corregated, chipboard (cereal box), and waxed (milk carton) and experimenting with burn rates and flame size. Corregated has the largest flame because of its bulk and actually burned about 4 hrs compared to chipboard which burned 3.5 hrs. Both will boil a cup of water in less than 5 minutes. Multiple regular candle wicks produce less heat than one 1" lantern wick so boils water a little slower but of course will last longer. I gave up timing those at 6 hrs and they were less than half used!
It varies in the amount of wax needed to make each stove depending on the wick material. The carboard strips took up more room in the can so needed less wax but burns faster. Wax is not cheap at 5$ a 1lb box so you need to find a cheaper way than just buying boxed paraffin. It took about a box and half to make five stoves. My next step is to check the burn rate for Sterno, time boiling water using it, then compare cost!
Making these stoves is so easy to do and there are so many different materials you can use that it makes a great new hobby. And then you can always make little grills or stands to put your cup or pan on out of lots of different things like old wire fence material and coffee cans. There are no limits. Use your imagination!
It varies in the amount of wax needed to make each stove depending on the wick material. The carboard strips took up more room in the can so needed less wax but burns faster. Wax is not cheap at 5$ a 1lb box so you need to find a cheaper way than just buying boxed paraffin. It took about a box and half to make five stoves. My next step is to check the burn rate for Sterno, time boiling water using it, then compare cost!
Making these stoves is so easy to do and there are so many different materials you can use that it makes a great new hobby. And then you can always make little grills or stands to put your cup or pan on out of lots of different things like old wire fence material and coffee cans. There are no limits. Use your imagination!