Hot answers tagged

61

Comparing hydrocarbons with batteries As Olin Lathrop wrote, the big problem is energy density: hydrocarbon fuels simply offer a huge amount of energy per unit mass, compared to any current battery technology. To put some numbers on this, we can look at Wikipedia's page on energy density. Let's compare ethanol (probably the least energy-dense of the ...


23

There are no electric backcountry stoves because there aren't long enough extension cords. Seriously, where do you propose to get the energy from? Batteries of current technology don't have the same energy density by weight or volume as chemical fuel does. Battery technology is advancing rapidly, so some day this may no longer be the case, but today it ...


8

Battery powered stoves and ovens are available, but they don't get as hot as a regular oven. They are designed to plug into a car's 12V outlet, so they need a car battery, which is impractical for someone on foot. As a result, they are not designed to be light weight. They work for car camping, though. In the US, they are often used by truckers living out of ...


6

As others have pointed out, the major problem with electrical heating methods is that they require a lot of energy, and current battery technology is a long way off being able to hold that energy in a comfortably portable unit. Since your main objective seems to be to get hot food / water while camping where fire/flames are not permitted I'd suggest you ...


5

The short answer to your question is yes you can get a stove to light and cook your egg on the top of Everest if you really wanted to do it. Backpacking stoves are pressurized All of the backpacking stoves I've used use some sort of pressurized fuel system. This means that the ambient air pressure isn't going to affect the flow of the fuel. Fuel ...


5

1 oz of isobutane will boil about 1.8 L (about .475 gallons) of water, for a Whisperliite Universal Stove


4

For butane/isobutane/propane canisters, the stove design, affecting the temperature in the canister or liquid feed pipe, and the boiling point of the gas mixture would matter. At very low temperatures even the O ring rubber type would matter as some types go less rubbery and do not seal properly. For instance, if the temperature of an upright butane ...


3

As we saw in other answers, current battery technology would require about 1-2 lb of battery per half-liter of boiled water (or simply, more battery than water). The only practical way we have today of getting enough electricity for a reasonable weight would be to use a hydrogen fuel cell. They are gradually getting smaller and less expensive, so you might ...


3

The original Penny Stove has been popular for over a decade as a DIY alcohol stove designed for ultralight backpackers. Its trademark is the use of a penny as a fuel regulator. Independent tests document that it heats faster, uses less fuel, simmers longer, and packs lighter than any commercial alcohol stove. The 2.0 version achieves the same ...


3

If you are not specifically looking for a liquid fuel thing: I always fantasized about making one such thing. But I have never tried. Get a tin Make something that looks like below. Advantages: Tins are easy to find and so are those solid fuel tablets If you break it, worst case you will be at loss of money worth a burger and time worth an afternoon ...


2

Isobutate/Propane fuel amounts are usually presented in terms of net weight. The small canisters are usually 3.5oz ~ 4oz (100g ~ 110g). The medium canisters are usually 7.75oz ~ 8oz (220g ~ 230g). The large canisters are usually around the 16oz range (~450g). The amount of fuel depends on the brand, but that's a general guideline. Most of the "big name ...


2

I used a "rocket stove" on a long wilderness survival trip. That stove was also heavy and very efficient in burning "found wood." It made good sense for a fixed camp. In my opinion it would be far too bulky and heavy for either biking or canoeing and certainly backpacking. On that trip, and others, I used solar chargers for electronics. I think solar ...


2

A solution that meets all of your criteria (with the possible exception of being robust) is a DIY cat food alcohol stove used with a DIY Bushbuddy-style gasifier stove. Both are easily and cheaply made, and very lightweight. Hundreds of people use one or the other, or both, in all seasons. When in alcohol mode, put the stove inside the bushbuddy; the ...



Only top voted, non community-wiki answers of a minimum length are eligible