jetboil fuel

[schultz104]

Is there any specfic rule when planning fuel consumpation with a jetboil fuel canister?
Thanks
Eric

[rafe]

With an ordinary canister stove I figure 0.1 oz. of fuel to bring one cup of water to a boil. So you should get a bit more with the Jetboil.

[RedBeerd]

I think I went through 1 canister on an 18 day hike cooking twice a day.

[Coffee]

Small jetboil canister used in jetboil sol aluminum lasted almost nine days last year boiling 32-40 ounces per day.

[Starchild]

The small Jetboil (or compatable) canister boils just over 10L of water (assuming you are using the jetboil to boil the water.)

It also weights approximately 100 grams empty and 200 grams full. So it is easy to find out how much is left if you have a scale, just subtract 100 and you have the percent remaining - move the decmal place and you have how many L's left to boil.

So if the partly used canister weighs 183 g, you subtract 100, so 83grams of fuel, 83% remaining or 8.3 L of water can be boiled.

One canister that I have marked is new weight was 197g and empty was 99g. so for me this is close enough to assume the approximation.

Some canisters manufacturers start with more fuel, IIRC MSR and Snowpeak do, so you start with over 100%, something like 110 percent, which will get you 11 L instead of 10.

[colorado_rob]

Just one more data point: I get a solid week heating 6-7 cups a day for the small canister (4 oz fuel), twice that for the larger one (8oz) using the Sol Ti Jetboil in moderate weather (not to cold, like low-mid 40's and above). Some heats I bring to a full boil, others I just get the water close (lots of bubbles, not quite boiling).

I think this is fairly consistent with Starchld's 10L figure (6-7 cups = 1.5L times 7 = ~10L), and RN's figure of 9 days and 4-5 cups.

[schultz104]

what size canister