








Butane Stoves
At first you may doubt that backpacking stoves running on canisters of
propane and butane mixtures are a better idea. The run time of a single tank
is about two hours, and often less. If you're used to alcohol stoves and slow
cooking times this may sound unreasonable.
But there really are advantages. The stove burner, valve and pot rest of a
canister stove may only weigh two ounces, and the tank itself can be as
small as four ounces. The short burn time is misleading, because the BTU
output of a typical butane stove is higher than alcohol and even higher than
gas. Two hours of cooking time on a butane stove equals a lot of meals.
There's little fuel waste with a butane stove. The boiling point of butane is
about four degrees Fahrenheit; and propane, which often forms part of the
mixture, boils at forty below zero. Even in frigid conditions you don't waste
any fuel preheating the stove, as you would for a gas fired stove. There should
be no spillage of fuel when you remove the valve from the tank -- the tank
pressure seals itself.
Gasoline stoves can be tricky to light. Heating the burner and pressurizing
the fuel tank takes labor, fuel and time. Canister stoves are already primed.
All you do is open the valve and light the gas. As long as the temperature is
above zero, it's trouble free. Below that, you may have to warm the tank first.
Because of a long history of having to fix things for a living I remain cautious
about the multi-fuel backpacking stoves that claim to run on anything from
butane canisters to bottled diesel fuel. Heavier fuels inevitably cause more
problems. Stick to the light fuels if you don't want trouble -- white gas and
propane/butane fuels burn clean. If you decide on a multi-fuel stove with hose
connections to the fuel source, take very good care of that hose. A leaky
hose puts you out of business.
Though several models of butane canister stoves incorporate piezoelectric
starters, be sure to carry a second source of fire in case that doesn't work.
Battery powered ignitions are reliable, but the starter systems on most
backpacking stoves are mechanical devices and less dependable. You may
need a match.
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