 > why us US cups? I imagine because there's so much more experimentation in the US with home-made stoves, so they've set a precedent with the volume of water used in tests. In theory, it would make comparative tests easier, barring my objections above. I'm still in favour of 500ml instead of bonkers foot-poundal per cubic gramme-banana units...
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| Edited: 30/05/08 15:54 |
 For personal preference Charles I agree with you and CP, but using U.S. cups makes available many more comparisons, as CP says. But it was only a suggestion which seems to have been rejected. Fair enough.
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 This monstroisty(sp) will boil 250ml tap water in just under 10min and will burn for another 8min on 12ml of meths. Dont ask the weight. It will hold about 50ml of meths which could give a burn time near 1 1/4 hours... oh ok 36g but I will do a mod at work tonight and will bring it down some but it will include a pot stand. off to work now.
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Ah, that looks like the same sort of idea as my cigar tube burner; lower reservoir, and upper side burner tube. Only executed better... 36g? As someone said to me earlier, are you planning on taking a porter..? 
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Hi all, i've just trawled through a few posts, and have been very surprised at how varying the rusults of folks experiments are. So I have just picked up one of my coke can stoves (9g) and used it to boil 474g of water, in an old (heavy) trangia pot. This test was not super scientific, but here are some of the results. Bubbly noises (boiling noises!, as they seem to be called now) after approx 4 mins. Boiling properly after 4.30 mins good rolling boil after 5.15 mins still a good rolling boil after 9 mins still a good rolling boil after 10.30 mins a slow boil (but still bubbling well and steaming) at 12.30 mins total burn time (once flame had bloomed) of 15.45 mins I will post some pics of this test, in my following post's. Oh, and you will have to excuse my poor photography LOL.
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| Edited: 30/05/08 18:27 |
This was the boil after 9 mins. As with everyone else, I didnt use a windshield, for clarity of pics. If I had done so, then the boil would have been even more fierce
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this was the boil after 11.30 (below) and 12.30 (above)
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this was the flame pattern at around 12 mins (as I said it was hardly scientific, and I've just noticed I didnt even bother to centre to stove in its stand)
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Oh, and you're cheating; you're not allowed to use the cooker... (i.e. pictures of the burner would be nice...) <edited> ah, beat me to it...
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| Edited: 30/05/08 18:27 |
Interesting that you're using a side-jetting type burner, but not using it as a pan support. And that it jets even though there's a gap at the top. Does the burner have an inner wall? That would create a pressure vapour chamber to drive the jets. I've had trouble with pan-supporting side burners going out when you put hte pan on, even after the jets seem well established. Not using it as a pan support would stop this. And I noticed that with the Fresh Box stove on the mackerel can, the can had an uneven base, so there was a gap. Admittedly, with the bottle neck inserted into the base, there's still a sealed vapour chamber so the top seal isn't as important. You mentioned earlier how far the jets were from the pan on my side burners. Looking at your setup, I don't think it's any closer. Mine were designed to be 15mm from the pan; yours looks to be about the same. Times sound about right; all my measurements are made from lighting the fuel, and include any priming times (I think...)
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Dont know how much fuel, as I didnt measure it. I normally only use enough for on mug of hot drink, or a boil in the bag meal (one tealight-ish of meths) Plus there is always one who wants more pics (you know whom you are)!. So here are a couple of quickies. Two burners in the shot. A normal coke can stove, and a red bull size simmer model.
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Oh, and of course, the other variable I didn't conside earlier is the 'meths'. It's not a universally consistent fuel, and varies in constitution from supplier to supplier, and around the world. I saw a news item on the telly last night, about a Dorset company that have sold waste biomass to ethanol generator systems, and they showed the resulting ethanol. My first thought was for use in stoves. Oh to be able to buy bioethanol without the stupid duty...
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> Dont know how much fuel, as I didnt measure it. Okay. Just trying to get an idea of the rate of fuel use; burn duration times are meaningless without fuel volume... Thanks for the photos. A picture paints a thousand words. Blurry, dark pictures around 500.. ;-)
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CP, to be honest it was the first stove I picked up, I didnt even bother to notice which type of jets it had. but as you ask, the jets are 12mm from the base of the pot. Yes it does have an inner wall, which is perfectly sealed top and bottom, obviously apart from the deliberate holes in its base (three holes equally spaced, which are each made using a hole punch (only using half of the punch width)) I didnt include the time before the flame bloomed, as I have found that this varies masively outdoors, and thus only the actual usable cooking time (pot directly on the stove) is what I go for. Yes I have used a stand as it is safer, plus with a suitable stand, I have used 28cm frying pans,or even once, a 5.8 litre pot, for mass boil in the bag cooking sessions.
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| Edited: 30/05/08 19:02 |
Ok, CP, I'd hate to leave you unhappy with my blurred and dark shots, so here are some less blurred, and less dark shots for you. here you have a folding heat reflector at 6g a standard redbull and a simmering redbull stove standard coke, long burn coke (taller) and simmering coke stoves Lastly a pot lid with steam/water vents for titan kettle size pots. 5g Oh, and all my stoves have an inner wall (even if my pics dont show that well!)
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| Edited: 30/05/08 19:04 |
 Very nice Ray! 
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 Howdy all! Been playing with stoves again as I'm off work at the moment. I'm liking what the yanks are doing using those Heineken cans as pots, does anyone know in the UK where these can be bought. I saw them in Tesco and Sainsburys but they were 330ml ones that seemed a bit smaller than the ones being used across the pond. Been playing around with the convex type stoves today and much prefer the assembly process than the standard way of doing things. Made a red bull sized side burner using the convex method and my old wrapped inner wall method and it gets a running boil in less than 8 minutes and is extremely efficient, works great with my MSR Titan. Also can be made without workshop as made the whole thing with just one knife and two red bull size cans. Will post piccies and details soon. Tried the tealight stoves but wasn't impressed. They boiled the water to a warm enough temp for brews, just, but they wouldn't get a rolling boil. I always test stoves outside aswell as theres a huge difference between indoors and outdoors.
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Jamie, the Heineken cans used as cooking pots are740ml - also called '24 oz.'. They are the same shape as the 330 ml ones, just scaled up. As far as I know they are only sold in U.S.A., though funnily enough the small print on them says they are filled in Amsterdam then exported. I had thought of contacting Heinekens PR dept to see if we could divert some, but gave up after failing to find an obvious phone number on any Heineken site. Anyone else care to try? Unless you have a friend living or visiting the US, the best source is Tinny of Minibull Design clicky .
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| Edited: 02/06/08 10:52 |
Frum and Jamie. I'm not sure of the cans you refer to i.e. whether you are talking of the ones the same shape as a coke/pepsi can, or the ones that are a similar shape to beer barrels. If you are reffering to coke shaped cans, Asda sell a beer called "Cains" (mild and bitter I think), this comes in scaled up cans (cant remember the volume) of a similar size to that you mention. I once considered making a large stove out of them, but being tee total I have always been too tight to buy it and then pour it away LOL.
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