/ alcohol/beer can stove makers?
Anyone got any tips from their trials and errors?
Froget these... Esbit all the way.
Yes I've had a play, got quite indepth at one point. ended up with a stove and windshield/panstand that could boil a litre of water on 30ml of fuel in 4 mins.Capatin Paranoia has an epic thread on outdoors magic where every concevable idea was discussed and that should be your first stop. Its a lot of reading!
I found to get the very best boil times requires just the right amount of heat, too hot and the fuel burns out too quickly. I think the key is in trapping and using as much of that hot air as possible. Also, the the 'pressure chamber' built into the centre of coke can stoves, I used rockwool wadding so if knocked over the chances of a flare up were reduced. Pressure in my stoves was controlled by a simple penny covering the fill hole. Pics of mine are on that thread towards the end.
blanchie14c - that is a lot of reading! Oh well, will crack on with it. Cheers.
Well, it might not be any fun... but at least it'll work.
Besides, being a enginerd it's me, who should be more into tinkering idiotic stuff and wasting hudge amounts of time for something that would cost like a fiver from the shop.
> at least it'll work.
Hang on, I thought part of the point of the coke/beer can stoves was that they actually work really well - they self-pressurise to burn the fuel efficiently.
Those esbit things are just a stand for a fuel cube, and there's a lot of yellow in the flame.
Oh, and Toby, if you haven't seen this I'd settle down and get some more biscuits in : http://singletrackworld.com/forum/topic/sick-as-a-dog-so-show-me-you-bivi-bikepacking-adventure-raci...
Yes - although I think that's the bit I'm having trouble with! :)
Also they look basically the same as my first ever stove; a hex stove bought when I was about 13 from Famous Army Stores in Kidderminster. I still remember the hassle of trying to make a cup of hot chocolate with it somewhere up toward High Street on my first ever backpacking trip to the Lakes. Me and my mate Rich huddled round it trying to keep the wind out and thinking, "do the SAS really use these crappy things?!?" :)
It a great feeling when it happens - the fuel in the outer chamber starts to vapourise due to the heat in the central area and the flames start jetting, not exactly pocket rocket but proper blue jets with a yellow tip like on a gas cooker. Great fun building them but meths stinks, open a window.
I bivvyed at Black rocks when was about 16 and all we had was a hexi stove, one of the coldest nights of my life that was and boiling snow to make hot blackcurrant only added to the misery due to the fumes coming off the blocks. Good times!
I made a couple for heat treating small bits of silver steel after my cheap shop bought spirit lamp failed (wick won't actually wick*) and my cheaper gas torch failed (setting fire to me in the process). I tried a few designs but struggled to get a stable focused flame (not what you want from a stove necessarily) to burn hot enough*. Anyway, they're so quick and easy to experiment with you might as well just do some reading then try a few variations.
*I suspect meths isn't quite what it once was, I suspect mine has significant water content.
Indeed. The outdoors magic thread has many americans and they don't have meths over there, they have denutered alcohol or somesuch, burns better than our tramp wine. I use IPA in my little ultrasonic cleaner instead of meths due to the water content and other stuff in meths. when cleaning electronic parts meths tends to leave a white residue.
The Americans also use something called HEET to run their stoves on, its a additive they put in fuel oil to stop waxing IIRC
Have you tried putting a lid like the trangia to control the amount of air? You can also buy this small trangia accessory pretty cheap.
check where your putting the holes, in yours they are on the slope on the other pic you posted they are on the side
and bigger holes too
> I use IPA in my little ultrasonic cleaner instead of meths due to the water content and other stuff in meths. when cleaning electronic parts meths tends to leave a white residue.
IPA? Have you tried Special Brew?
When I put my can inside one of these stoves http://www.backpackinglight.co.uk/cookers-and-stoves/RD101.html
then more heat was reflected back to the can and it burnt really well once it was going, probably too well but still with a bit of yellow flame, so I only use it for travelling light and boiling water for freeze dried meals.
I have heard of people lighting a base with meths in it to heat the( can) stove up to get a better jet.
The picture of the last stove you showed and wanted the same flame may have been slightly smaller so the heat is in a smaller chanber and the flame nearer the meths.
Someone said why bother makiing the can stoves.
They are a lot lighter than trangia stoves and an equivalent in titanium will cost about £46.00
I suspect you've still got a poor seal between the inner wall and the upper; that's why the jet flames are small, but the central flame is huge. From the twitter picture, it looks like there are wrinkles in the inner wall.
If you put a pan over the burner, the central flame does disappear, as it gets starved of oxygen, so the burner burns from the flame ring instead. But your central flame is rather bigger than usual; as you know, it should look something like the flames in the last picture in my OM guide:
The other issue is fuel: what are you using?
On the slope is fine, and makes lighting of the jets easier (the jetting meths vapour is closer to the central flame).
Not necessarily better.
Probably not a good idea; 0.6 to 0.8mm is about right.
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