ALCOHOL STOVE? Which PAN for BEST efficiency? Titanium vs Heat exchange testing.
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- čas přidán 10. 09. 2024
- #STOVENERD Testing a heat exchange pan against two titanium pans with a trangia burner. I want to know if a heat exchange pan has the advantage with the relatively low heat and calorific output of an alcohol stove? Find out here!
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Thanks for putting in the effort to benchmark. As you showed, you'd need a many-days cooking need to justify the weight saving on fuel to offset the weight penalty of the HX pot.
For meths specifically, the flame is so much weaker than gas it easily wants to get 'distracted" sideways in any kind of wind so I find meths pairs much better with a wider pot, even then meths easily fails to boil in more than a slight breeze without a robust windsheild. Trangia 27 has far wider pots and entombed within a full windscreen as a result. For around that 700ml type volume means a shallow pot. e.g. the Toaks 115mm 700ml - it is 90g weight including lid. The pot with the Mini-Trangia is even wider it is 91g no-lid.
I'd be curious what your tests would have concluded with a WIDER non-HX pot.
I have the Toaks Siphon and the Trangia burner. The Siphon is 20g, vs Trangia 112g and more fuel efficient in wind as the flame is narrower and less "distracted" by wind, but is only really good for boiling water, the Trangia is more of an all-rounder.
By your own calculations the HX weight penalty of +3g fuel/boil would require ((170-60)/3) > 36 boils. And then you get into the point that meths only is a weight saving for shorter trips as longer trips the lower calorific density of meths loses to gas. An example 5 days trip meths I average meths 60ml/day so need 300ml meths total weight 330g but with gas I use 15g/day so 75g and a 100g canister weighs 215g.
So really where HX begins to win it's argument isn't with meths but with gas where the HX weight causes you to not carry a 2nd 100g canister or not a larger 200g canister.
1-2 days = meths. 3-5 days = gas non-HX , > 5 days = gas + HX pot.
On your point of distance from flame+pot, I think you'd probably find a slightly-full Trangia burner is more efficient than a full one as the fuel evaporation has a bit more distance, a Trangia burner is at it's hottest near-empty than near-full. Possibly your first boil from a fuller Trangia was less-hot than the later ones, as I think you didn't refill the buner?
Thanks for your comprehensive comment. TBH I have tried loving meths cookers for camping! as so many do, but find all the downsides too much for me. Last time, I burnt my fingers and just find that 'loose' flammable liquid too dangerous in a tent. I will generally stick with my remote canister stoves, and I don't mind the weight. For my night walks and cups of tea down the woods, I will stick with meths, it's perfect then. Hi to Yorkshire!
Thanks David, some useful information, especially the optimum distance between heat source and pan.
Glad you enjoyed it, cheers David
Heating up the water is one aspect of the comparison, the ability for the pot to retain the heat of the contents (with and/or without any insulation cover) after heating and whilst it is to be consumed is a fairly relevant metric too, perhaps of greater lasting interest to the user. Possibly a good time to remind those with a morbid fear of aluminium pots that the contact between the contents and the pot is in fact the adonised coating, not bare/raw aluminium 😊
Good points, the heat exchange pan (with the anodised coating), will definitely do that. Thanks for a great comment.
Tidy job buddy, never thought of hx pot with alcohol stove👍🏻
Me neither, until i got finkin', seems to have done the job though. Hx- history in medical abbreviations!
So in terms of weight efficiency, for a trip longer than 4/5 days, would the Fire Maple be better than the Soto. I'm assuming 3 boil ups per day and ignoring wind effects.
That sounds about right, yes. With somewhere in between for the alpkit.
Any ideas as to why the 60g Soto did so poorly ?
Is it much narrower in width than the Alpkit.
Yes, thats the reason, to much heat being lost off the sie and closer to the flame. made me wonder too.
Have you seen Gear Skeptic's latest video about heat exchanger pans ? Would highly recommend.
I have had 3 goes at it so far but keep getting lost! Logical in parts but too many sub threads. What did you think?
@@Fellmandave1 I've watched it all twice, the second time regularly pausing the video for my brain to try and take it in, but for me its the gold standard. Good thing is, he takes a few months to produce his next video, which gives us mere mortals time to fully understand things. Wind effects on HX pans up next, that should add another layer of mind bending complexity.
@@iwalker3809 Yes he is gold standard. i just tend to share my latest musings. I will have another go out it when I am fresh and with a notepad!
I'm looking forward to getting back to the ethanol stove now it's slowly warming up... Thought you were going to lose an eyebrow for a second there.. 😊
Yet many really like alcohol for winter as they feel there is little performance loss. What haver you been on stove wise this winter my friend?
@@Fellmandave1 I've been using the Firemaple Blade 2 for the past couple of winters.. I like the stability but not the packability. 🤜🤛