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Wax mini stoves

17K views 42 replies 19 participants last post by  filman  
#1 ·
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!
 
#7 ·
In the book "Rough it Made Easy" by Dian Thomas, she makes these buddy burners too. One addition that she had was that she used the lid, that was on the can, attached a handle made of coat hanger and used it as a damper lid.

Using it this way only allows some of the contents to burn, thus decreasing the heat. You can adjust it easy enough too.
 
#15 ·
Ah! My brother made some of these in Boy Scouts! I'm going to have to start hanging on to the tuna cans and cardboard to make some of these. In a sudden emergency when we have no power, we'd have no source of heat for cooking. We at least have mild winters here, so we won't be desperate for a heating source for the house.

Now, is it best to use the tuna fish type cans, or can you use deeper cans (like, say, baked bean cans or whatever) with the same results/longer burn time/whatever? Just curious, because we use the bigger cans too, and it would be a good way to reuse them.

Also, what material did you find to burn the best/longest/most cleanly?
 
#16 ·
bigger cans dont burn as well when the fuels lower the oxigen down inside gets lower and they burn cooler.

I have gotten ten pound bags of broken candles at the junks store for as Little at 1.87

a two to three pound bags of nicer candles for around 2.95 but I have also seen candles for 4.95 a dozen at the thrift store so find a good one to shop at.
 
#17 ·
Expanding even further with this concept, I'm making a large one using the tin that cookies come in. The tin is 7" diameter at 2.5" deep which makes it large enough for a good sized skillet. But this is going to take a lot of wax so using store bought parraffin is not cost effective so I need to hit some yard sales! You can also fit 3 of the cat food can size inside as another option!
 
#19 ·
If you take a #10 can and cut a small door in the "front" and use a hand-held juice can opener to punch some smoke/air holes in the top rear, you can use the bottom as a cooktop stove with a little buddy burner underneath. We did this in Girl Scouts. Worked fine.

Oh one last thing is save the lid of the tuna can because you can use it to temper the heat if your stove gets too hot. Use tongs or twist a piece of coat hanger wire around it.
 
#25 ·
Thanks for the info everyone...

I made my first buddy burner tonight. I used the cardboard from toilet paper rolls and some left over candle wax.

It took me about 60 seconds of constant flame using a bic lighter to get it started. And when it did start, it was a very small flame and barely lit.

I let it burn for a bit and the flame did get bigger, but there's no way I could have gotten it lit if there was any breeze at all.

I'm guessing that I filled the can too full of wax and needed to leave a little of the top of the cardboard "unwaxed".

I suggest if you're new to this, to light your buddy burners and get them going a bit before trying them in an emergency.

Has anyone else had this problem or anyone have any advice?
 
#26 ·
I leave about a quarter to half inch of cardborad sticking up but coat it in wax! I can light them in seconds! I even tried lighting some with a firesteel using cotton laying on and in between the cardboard and it works good too! I did find out that if you use candle wicks instead of cardboard, it will only burn for a short time before the wicks fall over so you cannot just let them burn indefinetly! It's really fun experimenting with them!
 
#32 ·
I got a cookie tin with a lid that will hold four buddy burners, made a collapseable grill for it and now I can actually use a frying pan on it. Everything fits in the tin when not in use! hard to find metal cookie tins as most cookies come in plastic containers nowadays!
 
#35 ·
Another trick for making them easy to light is to break off a couple of stick matches and shove them in the center before you fill them with wax, then you can either light the match or if you are without fire jut strike the match in the can. If you put the matches in before you fill them it will also water proof the match.
I just thought of this too. My next one I'm going to add a bunch of matches to it. I want at least one burner that is "sure fire" in a wilderness survival situation.

And like you suggest, the wax will help waterproof the matches. I think I'll have 4-5 strike anywhere matches, then tear off a pack of paper matches and add all of them in the cardboard. If I can't get that lit in a survival situation, I deserve to freeze. ;)