MSR REACTOR stove

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Oct 31, 2007
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I bought the MSR Reactor stove for when i hit the back roads and remote decommisioned logging roads in my truck, where gear weight is not an issue. That being said, i will be packing this nuclear reactor on occasion for laocl hikes, esp in the winter.

The MSR REACTOR is a "system", that is the pot and the heat enchanger are all one unit. I like this feature, its less parts to break or lose and it is a very simple design. The pot/heat exchanger is titanium, and very light. The tiny welding beads are impeccable, i have not seen welds this good in a long time.. There is a fold out handle, and a lexan lid. The handle folds over the lid and locks tight with a neat little cable/ball detent. The whole unit sits on top of the wire mesh radiant burner, and is quite stable. The burner itself is very well constructed, not many plastic parts, and is also quite light. The burner threads into a standard IsoButane canister. (good for approx 50 uses with a full pot each time). This unit is different than MSR's regular stoves, in that it uses radiant heat instead of flames to heat the pot. This burner is 100% windproof after lighting, there is simply no flame/flame port to blow out, plus its completely enclosed.

packed:
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unpacked:
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heat exchanger area:
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the heat goes into the exchanger area, and up the inside wall, and exhuasts out these ports:
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set up ready to go:
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To Use: engage the canister of isobutane and turn the fuel lever to half. Light with lighter. Takes about 2 seconds to start glowing, and about 30 seconds to reach full temp. It is hot. Very hot. Hades hot.

warm up:
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full throttle ahead (stove is SILENT too)
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i added ice cold water to the pot, 1/2 liter worth. The pot holds a little over a liter of fluid. The water was at rolling boil in FORTY FIVE (45) seconds (bear in mind i'm at 60' above sealevel....)

10 seconds after placing pot/heat exchangers onto the radiant burner:
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25 seconds:
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full rolling boil at 45 second mark: (during boiling it roars a bit, its actually pretty neat)
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stove takes about 1 minute to cool down after fuel shutoff.

I'm VERY impressed with this stove. At first i looked at the JETBOIL, but i felt it had too many small parts and plastic bits. I'm glad i chose the Reactor.

10 out 10

Safety: under no circumstances is this unit to be used as a radiant heater or to cook with indoors. YOU WILL DIE from the carbon monoxide. Not meant to be used as a radiant heater EVER.
 
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huh.. i have never seen that stove before.... it looks pretty cool....

i have the MSR pocket rocket, whisperlite international and the dragonfly.. all of which have ben great over the years...
 
Interesting review. I do have a Jetboil and quite like it. I did look at the MSR but decided on the Jetboil simply based on previous use. The MSR seems to pack down much smaller than I thought though. Any chance of a comparison shot next to, say, a Nalgene bottle? Thanks!
 
Thanks for the review Bushman5. You have helped me decide to go ahead and get one of these stoves.
 
its a bit bigger than the Jetboil (widthwise) and i dont know if the fuel canister on the Jetboil can be packed inside....

EDIT: here we go, the MSR Reactor stove next to the best measuring device in the world:

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BENCHMADEBOY, can you give us a review of the Jetboil? :thumbup:
 
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Excellent review Bushman. I've always shied away from the canister stoves for fear of not being able to find additional canisters. However, this one seems to have the performance to merit reconsideration.
 
looks like a really cool stove, it must be incredibly hot to get cold water to a boil in 45 seconds...i wonder if you could do some backwoods forging with that!

cool looking stove, nice review. thanks for sharing.
 
Excellent review with excellent pictures. Answered all the questions I would have had. As I mentioned in a different thread, I don't cook outdoors to any great degree, any more, but if I did, I would definitely consider this little beauty.

I have used canister stoves and lanterns for many years and like them very much, but the fact there is no flame to blow out, etc. is a nice touch.

Doc
 
Great review Bushman5, thanks. If I didn;t already have a jetboil I would certainly consider one of these. 45 seconds is impressive!

Is it a catalytic heater then, with no flame? Like my gas soldering irons. Or is there a flame under the grill, like under the gauze with a laboratory burner?
 
Great review. I didn't have the patience to wait for the reactor to come out so I got the superfly. I love the cannister stoves because they are much faster then the liquid ones.

Is there any flame or does it just glow like a colman heater?
 
i'm not entirely sure....MSR states its a radiant burner.

, there is no flame visible to the eye except a brief blip when you light it. Then the radiant material and wire screen glow almost white hot. I'm assuming that the flame is spread out UNDERNEATH the radiant burner material.
 
Bushman, thanks for the comparison shot. I'm busy the next few days (getting ready for my first whitetail hunt!) but I'll try to do a review on the Jetboil in the next little while.

cheers
 
^ right on, enjoy the hunt!

i'm heading out right now for an evening drive, about 100kms out of town. Going to make some ramen and some after dinner indian chai tea, and take night pics of the overflowing rivers.

pics when i get back.
 
Great review. I didn't have the patience to wait for the reactor to come out so I got the superfly. I love the cannister stoves because they are much faster then the liquid ones.

Is there any flame or does it just glow like a colman heater?

It probably glows like a Coleman heater.

Caloric made a gas range with, what they called, an Ultra-Ray Broiler and it worked the same way, except, of course, as a broiler, it was above the food. It was the first waist-high gas broiler in domestic ranges AFAIK.

Doc
 
UPDATE and further reviews:

- I had incredibly fast boil times on a new , room temp isobutane canister. As the canister was used up (pressure drop) , and in colder weather, the boil times increased, but not enough to bother me.

- I had ZERO leakage problems with the MSR isobutane cans, but with a generic isobutane canister i had some leakage for about 1 minute after canister removal from the stove. Seems the self sealing seal on the generic gas canisters does'nt always seal properly. Something to look out for, ie: carry a backup when in the woods.

I removed the MSR isobutane canister about ten times off the stove, it sealed up perfectly every time.

so basically, dont buy the cheap canisters, buy well know brand names canisters.

- I wish the lid on the pot/heat exchanger unit was titanium as well, instead of lexan. Nothing wrong with the lexan lid, it works just fine, but i like Ti. (personal preference)

still give this unit a 10/10
 
That is an interesting bit of kit. I was very interested in the old MSR heat exchanger device as a stand alone one could use on any right size pot. Had a go at fabricating a crude effort myself but didn't notice any difference. I figure that was my work though as the usefulness of the MSR one was widely reported.

I'd probably be tempted to buy one of these stoves if it ran from a remote bottle. I'd be willing to suffer a bit of packed size for stability and to keep the bottle warm if that's what it took. Interesting technology anyway.
 
Does it simmer, or just boil water fast? Not that boiling is a bad thing, but sometimes I like to do some real cooking outdoors, and you generally need to simmer for that.

-John
 
It boiled that 1/2 liter that fast for several reasons:

- the canister was at room temp
- the canister was brand new and full
&
- i was right at sea level.

The boil times are QUITE varibale....temps.....altitude...full/med/almost empty canister etc etc. overall its really damn fast boiling in any case.

It DOES simmer, but keep stirring depending on what your cooking. Oatmeal would be a no no it will burn - its best to boil the water drop the oatmeal in and remove from the hat and then stir.
 
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