- Sep 23, 2017 at 1:52 pm #3492796
David ThomasBPL Member
@davidinkenaiLocale: North Woods. Far North.
We’ve got lots of data points for canister and alcohol required to boil a cup or pint or liter of water.
Who’s got any experience with any wax-based scheme: candles, fiberglass-wicked containers, gasified wax, etc?
I’ve got some ideas about a DIY tea-candle-based system that I expect will do pretty well. And it’s more fun to have a benchmark to do better than.Sep 23, 2017 at 5:50 pm #3492835Sep 23, 2017 at 6:27 pm #3492841
Ben H.BPL Member
@bzhayesLocale: So. California
Jon Fong reports 20 grams to boil 4 cups water on this thread:
That works out to better than 70% efficiency.Sep 24, 2017 at 12:35 pm #3492952
Jon FongBPL Member
@jonfongLocale: FLAT CAT GEAR
I did some testing a while ago boiling 2 cups of 70 F water using 3 tealights. Time to boil was 45 minutes and consumed 7 grams of wax. In another experiment, 3 tealights burned for about 4 hours. In my experience, I get about 25 watts per tealight. I hope that this helps.
Sep 25, 2017 at 11:51 am #3493097
- This reply was modified 10 months ago by Jon Fong.
Eric BlumensaadtBPL Member
@danepackerLocale: Mojave Desert
Hmmmm! Would this be any hotter than ESBIT fuel tabs? Would it leave less residue on the pot?
Without the stand legs and diffuser ring it is still too tall to fit into a TD Caldera Cone to concentrate the heat and have a built-in windbreak. Maybe a Tri Ti cone is tall enough, especially if the two ti shepherd’s crook stakes are used to elevate the pot.
Thanks so much for this post. Very interesting.Sep 26, 2017 at 6:38 am #3493240
Dan YBPL Member
From the zenstoves link:
Fuel Pure Paraffin Wax (Wax Stix, Candle Pieces , Etc)
Burn time full reservoir 30min
Paraffin wax consumption 26g/hr 0.91oz/hr
1,100 btu/hr (wax mode)
Boil cold water (Max 16oz [2 cups, 462mL]) at less than 1 min per oz.
David, what have you gotten so far as boil times and fuel usage for 2 cups?Sep 26, 2017 at 8:31 am #3493261
Jerry AdamsBPL Member
@retiredjerryLocale: Oregon and Washington
so, 16 min to boil 2 cups, 26 g/hr – 7 g to boil 2 cups water
that’s about the same as butane – 1/4 oz (7 g) to boil 2 cups water
the heat density of butane and wax are about the same so that makes theoretical sense
my only problem is it takes 5 minutes with butane, vs 16 minutes with wax, and the residue on the bottom of my pot. And that residue is waxy so it comes off and gets on everything. But that’s not the subject of this thread, sorry : )Sep 26, 2017 at 9:02 am #3493270
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