If you ask me, Jetboil are a one trick pony... and still, they were first with their briliant stove.
They came up with their first Jetboil stove somewhere back in 2004. They haven't changed much since. They manipulated it a bit, made their stoves in several sizes, but basically, nothing new. I do agree that their stoves are great. All the stoves they got are really efficient and work quite well. They also add some improvements along the way.
All I'm saying is that if you see one Jetboil stove, you get the point of them all. You just got to choose the right size for you.
So, what's so great about Jetboil anyway?
All Jetboil stoves follow some basic principles that makes
them highly
efficient. Basically, Jetboil stove is a full cooking system, not just
a stove. It is made of a burner, special pot, windscreen and a lid. Now
in details...
The windscreen is either built in (like in the PCS
for instance) or
assembled from the outside (like in the Helios). It keeps the wind away
and enables just enough air to flow through, so that the flames won't
die.
The bottom of the pot is unique (Jetboil named it "FluxRing").
I think that this
is the biggest issue here. The bottom of all pots got
this metal structure that traps the heat from the burner. It makes a
great difference in boil time and generally, in the efficiency of the
stove. Lots of heat that would normally get lost, is trapped by this
pot.
It sounds obvious, but using a tight lid increases the
efficiency of
any stove
you'll use. Jetboil uses a sort of a rubber lid in their stoves. It
works great.
This whole cooking kit is packed in the pot itself which is pretty neat. It can really save lots of room.
Same as the helios but with two pots, a 2 liter and a 3 liter. It cost
about 50$ more. Up to you if you need it.