I’ve taken a number of multi-day trips this spring and summer season with a Jetboil Stove, which like numerous lightweight stoves runs off canisters filled with a blended isopro fuel, and every time I pack I’m faced with the needling query of how a lot fuel is left in these partly made use of canisters that are accumulating in the basement. Can I get by for the weekend with 1 partially made use of canister or must I carry a spare just in case? Invariably I carry the spare due to the fact I cannot accurately guesstimate how a lot longer the partial will burn.So the query that keeps operating via my thoughts is this: Are there precise procedures of figuring out how a lot fuel or how a lot burn time I’ve got left in my canister?
I just ran across two options listed on Backpacker’s web-site quoting Steve Grind, the solution manager for MSR stoves. Here’s his assistance:
“There are a couple of reasonably excellent procedures for figuring out the quantity of fuel remaining in the canister. The most popular 1 is to weigh the canister when it is complete and create that quantity (in grams or ounces) down onto the canister itself. Immediately after the canister has been partially made use of, it can be re-measured and the weight distinction is how a lot fuel has been consumed. The net weight of fuel in a complete canister is printed onto the canister, so you can calculate the percentage made use of and the percentage remaining. To get to burn time remaining, you will have to know the burn time distinct to your stove. We publish burn instances per canister for every of our canister stoves. So if you have 60% of your fuel remaining, and the burn time on a complete canister (once again, distinct to your stove) is 80 minutes, you have roughly 48 minutes of burn time remaining. These burn time numbers actually need to have to be taken with a grain of salt, although, due to the fact canister output is going to differ drastically based on circumstances.
A additional helpful measurement is the quantity of liters of water boiled per canister. For instance, the MSR Reactor boils about 22 liters of water per complete eight oz. IsoPro canister, so a half-complete canister will give you about 11 additional boiled liters. The other strategy of figuring out the quantity of fuel remaining is a lot less difficult to do in the backcountry, or in your kitchen if you do not have an precise scale at your disposal. The canisters will float upright when placed in water, and the water line will differ based on how a lot fuel is remaining in the canister. If you float a complete canister and then float an empty canister, you can measure these water lines and mark them on your new canisters, then re-measure soon after the canister has been partially made use of. If the water line is halfway in between the ‘full’ water line and the ’empty’ water line, the canister is half complete.”
Right here are 3 other tricks that may perhaps aid you make improved use out of a canister stove:
- Use a windscreen. The heavy foils screens that come with MSR gas stoves (like the Whisperlite or Simmerlite) function nicely. Wrap the windscreen loosely about the stove so there is lots of area for air to get into the burner and for excess heat to escape. If you do not have the heavy foil screen from a Whisperlite, make a screen from a double-layered length of aluminum foil.
- To enhance the cold-climate efficiency of a stove, location the canister inside the the lid of a pot and pour in an inch of tepid or cold water. Even cold water is warmer than under-freezing air temperatures.
- For winter use, figure out how to hang your canister stove in a tent so that you do not waste calories cooking outdoors in the cold. The capability to hang may perhaps even be a requirement of the stove you acquire if you are a winter adventurer and/or a climber. Jetboil tends to make a hanging accessory for their stove that is incredibly slick, but I’ve also created my personal hanging technique for the similar stove by sewing a loop of webbing onto the pot’s neoprene cover/cozy opposite the pot’s webbing manage. A hanging cord then runs in between the webbing manage and my sewn-on loop (see photo under). When hanging the stove, I also twist a brief length of bailing wire (four-inches extended) in between the burner and the pot to guarantee these two components do not separate when I’m cooking. Possessing the burner fall off the pot would spell disaster for a tent floor (unless you are applying a floorless tent).