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Go high, go far, and enjoy a hot meal where ever you go.

Use the Primus Omnifuel Multi-Fuel Stove to quickly boil water at a high alpine pass or sauté some garlic without burning it at basecamp. Primus outfitted this durable, field-maintainable stove with an easy-to-use ErgoPump, so it excels in extreme conditions, altitudes, and temperatures. If you travel abroad, you can fill this stove's included fuel bottle with any type of fuel—LP gas, gasoline, diesel, kerosene, and even aviation fuel. Primus also threw in a nylon stuff sack, wind screen, and heat reflector.

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Primus OmniFuel Stove w/ ErgoPump & Fuel Bottle

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Here's what others have to say...

In what country are you sending?
How much...

In what country are you sending?
How much will it cost shipping to Russia?
How fast is the delivery of in my country?

Responded on

If you live in Russia yes, Backcountry does ship to Russia, as for the cost it depends on what you order and the packages weight, the easiest way to figure this out would be to enter the items in your cart and click proceed to checkout it should give you a price for your shipping and an approximate shipping time. However backcountry does ship with UPS so when you place an order you can track that order through the UPS site!

Is it including repair kit?

Is it including repair kit?

Responded on

Yes, this does come with a parts kit, it will come with two separate jets for different fuel types and a repair tool. This stove is an awesome little stove! i highly recommend it!

Can I sit a Snow Peak TI 700 cup/kettle...

Can I sit a Snow Peak TI 700 cup/kettle on top of it? I bought a Stoic 700ml kettle/cup from Backcountry and want to make sure it fits on top for cooking.

Responded on

I have both and just tried it. Technically, it fits on top. Barely. While it does fit and would work under close care, I personally probably wouldn't use it. I'd opt for a pot with a wider base to provide a bit better stability.

Tech Specs say that this stove can simmer....

Tech Specs say that this stove can simmer. Is that with the liquid fuel or canister? I know most multi fuel stoves still don't do well lowering the flame W/ white gas etc.

Best Answer Responded on

With any fuel, this stove has the best flame control and simmering capability of any stove I've ever used, and that's a lot of stoves over the years. You can boil water fast on high, and with a little practice, you can simmer foods that would normally end up burned and stuck to your pan just as easily. Dual flame controls on the stove itself and at the valve where it screws on to the canister/pump make it even easier to get what you need. I think the only issue I've ever had with this stove is when I prime it up using white gas- it always seems to deliver just a little more than I need and takes a few minutes to burn off. A few drops of alcohol takes care of that, but once it gets going, great stove that simmers exceptionally well.

If i leave the pump mechanism in the tank...

If i leave the pump mechanism in the tank while out camping...will white gas damage it? What do you guys do?

Responded on

I have an MSR stove and I leave the pump in the tank 24/ work just fine

Responded on

I have left the pump in my 1st gen,pre-REI, MSR Firefly for many months at a time for close to 30 years with no problemns. I've only had to replace rubber gasket a couple of times

5 5

Solid stove

I bought this stove and it was first tested on sections of the PCT. The construction is solid, the operation is foolproof and i can see this lasting many years of use. In terms of noise its not too bad. If you're sitting close up then it may be a bit loud but its nothing crazy. It is on the heavy side if you consider the windscreen, the ergopump, and the bottle but then again, this wasn't designed as a super lightweight summit stove. Its more suited for short duration backpacking and camping trips, as well as in a base camp setting. Thus far i've only tested white fuel and propane and they've both worked flawlessly.

One very nice feature is you can flip over the can when you're about done and it will empty all the air in the tank. This is a really handy feature and saves fuel from being blown all over the place. Another option that can be considered (if you want to go with lighter weight) is the omnilite. its the same basic design except it incorporates titanium.

All in all its a heavy design but one that should last many years of use and run off virtually any fuel found on this planet.

Have this stove fuel bottle?

Have this stove fuel bottle?

3 5

Doesnt match the picture shown

The stove i got doesnt match the picture shown in this site,its not a big of a problem but if your going to sell something it should be the same..fuel bottle is different got the cheapy looking one..says nylon stuff Sack but where is it?! The windscreen and heat reflector is wet with gas! And it smells all over the stove!come on backcountry this is the first time i order from you guys and im already dissapointed.

Responded on


We looked into this and it does indeed match the picture shown as well as come with a stuff sack. We don't (and are forbidden to) ship any flammable gas, so your situation is quite perplexing. If it helps, we offer a 100% satisfaction guarantee if you feel like you were short-changed.

can i use canister fuel with this stove...

can i use canister fuel with this stove for months, leaving the liquid fuel for the freezing winter months without harming it?

Responded on

No, but if i were you I would re-light and test the stove before would heading out into the backcountry

Responded on

No and cannister stoves are notoriously bad in the cold. No pressure in low temperatures to keep the flame and heat output high enough. Gas doesn't freeze unless there is water in your fuel/fuel line. .

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Yes, you can use canister gas in the summer and white gas in the winter.Using either for any amount of time won't affect your ability to switch to the other when needed.

I got this stove to melt snow in subfreezing...

I got this stove to melt snow in subfreezing temperatures. If I use a) white gas or b) car gasoline, what is the approximate fuel consumption? How much snow->water can I melt with, say, the 0.6 lt bottle? If have a regular Ti pot with no heat exchanger.

Responded on

The .6 liter bottle will allow you to store about half a liter or 16 ounces (some room has to be left in the bottle for air). There are a lot of variables, including air temps, if you need to boil the water, etc.

With that in mind, a 16 ounce bottle should be enough to melt snow for drinking and boil some more for cooking for 2-3 days for one person. A general rule of thumb for snow melting is 6-8 ounces/person/day. I'd say you could bring about 10 liters of water to a boil from snow or maybe boil 5 liters and melt another 8-10.

Again, these are generalizations. You'll need to experiment and dial it in for your particular circumstances.

5 5

if you are lloking at this, you might as well just buy it...

yeah it is loud, but that's the worst thing you can say about it...aside from it being a tad heavy (heavy enough that you know it is bomb proof, but not so heavy you want to leave it at home). Any time of year, any kind of weather, it doesn't matter whether you are just boiling water or cooking gourmet, this stove will do it...

5 5

just the best

OmniFuel - the only way to use ANY kind/quality fuel (liquid or butane/propane) with pocket size stove. Previous model of this stove (MultiFuel EX) was succesfully tested in Himalayas.

Responded on

Bought it, used it, love it. There are no shortcomings or eccentricities that can't be overcome with a little planning, it's super stable and the flexibility on fuel means you really can take this thing anywhere.

The one "negative" comment I've gotten on it from more than a few people is that it can be noisy.

Hi, I have got a 10 year old Primus Himalayan...

Hi, I have got a 10 year old Primus Himalayan Multi Fuel and it looks pretty much like the Opti here. It stopped working on all but gas after being run on some particularly foul kero on Islan Peak. I suspect that the pump mechanism is trashed. Am I able to buy a new pump mechanism?

Responded on

Primus sells replacement pumps. You can contact them to confirm that they'll work together:

Do you remove the pump from the Fuel Bottle...

Do you remove the pump from the Fuel Bottle after each use or can you keep it in the Fuel Bottle while in the field ? I am wondering about getting Fuel in the storage bag if I need to store it after each use on my trips

Best Answer Responded on

I leave the pump in the fuel bottle until I get home when I empty it back into the source. As long as you have it securely closed, it will be fine & not leak.

FYI, I do take the pressure out of the bottle by unscrewing the pump until the air escapes then re-tightening when I'm between camps.

Responded on

The danger of leaving the pump in the fuel bottle is that a) you may snap the pump when packing the fuel bottle away, and b) if the pump gets caught on something the valve can open and fuel will leak out of the bottle. This is obviously a bad thing, particularly if you carry the bottle inside your backpack.

Responded on

I always remove the pump when packing, and leave the pump in the bottle when storing the stove under tent's fly.
Leaving the pump inside too much time could damage the rubber sealings - depending on the fuel used.

There are three different orfice size jets...

There are three different orfice size jets for this stove which are designed for different fuel types. Can I use the smallest orfice jet (JET27) for all different fuel, so I don't have to change jet when switch fuel type?

Best Answer Responded on

This would be nice but there isn't a one jet for all fuels. This is also the reason they give you different jets for multi-fuel stoves.

The smallest jets #'s 27 & 28 are for kerosene/paraffin. Since kerosene develops most of it's BTU's from pressure, the smaller the jet orifice, the more pressure is produced inside the tank. #35 is for white gas/petrol which develops pressure much more easily, & #45 is for compressed gas canisters which are already pressurized. Therefore you will have to change jet's when changing different fuel types for optimum performance.

Case in point, it will take @ least twice as long to boil water burning white gas using the #27 jet as opposed to using the #35.

When the text says that it will burn LP...

When the text says that it will burn LP gas does this mean the threaded 70/30 propane/butane canisters?

Best Answer Responded on

That's exactly what it means. The OmniFuel can use any Lindal valve fuel canister but not the 16.4oz green propane fuel bottle.

Primus OmniFuel

Primus OmniFuel

Primus OmniFuel on a ridge of the Appalachian Mountain Foothills of Northeast Alabama...

Will this stove work with ethanol?

Will this stove work with ethanol?

Responded on

Not a good idea. It would probably work, but alcohol (and ethanol) burns far hotter than most other fuels, so alcohol stoves release less fuel to cope with the temperatures. Burning alcohol in this stove would likely result in some kind of violent conflagration.

Responded on

I agree. Bad idea! Ethanol has a higher octane rating, 129, but a lower BTU or watt (thermal power produced) rating which is what you need for boiling water. Isobutane, kerosene, & white gas burn much hotter than alcohol plus it's compression could result in an explosion mainly due to it's relatively low flash point.

Responded on

If you're asking where it will run on pure ethanol, then no. But if you are asking if it will run on the ethanol/gasoline mix sold as gas stations for automobiles then yeah it will burn fine.
Stoves designed for alcohol are fantastic for certain situations (simple meals, boiling water, not too cold, no snow melting, any altitude)

Responded on

I tried once to put technical alcohol in it (90% ethanol). After priming, the alcohol vapors ejected the .45 LPG jet which such speed that I could not ignite them and sustain a flame. I read somewhere there are some people who managed to burn ethanol by enlarging the orifice of some jet to 1mm or something like that.

Is it all right to switch between the...

Is it all right to switch between the different types of gases at each use? Will it harm the stove?

Responded on

It shouldn't harm the stove, but you will see various degrees of performance. Try to avoid unleaded gasoline if at all possible. I would stick with white gas (ie. coleman fuel) whenever you can. White gas is the cleanest and best performing fuel with the highest BTU rating per ounce than any other fuel type. The true benefit of a multi-fuel stove is when an emergency situation bears it's ugly head. It's also a benefit if you travel outside North America. Other than that I would stick with white gas.

Responded on

Au contraire! Both white gas & kerosene max out @ 10K BTU's whereas isobutane/propane blends increase, at last count, to 24K BTU's. Granted stove design & gas compression do contribute overall, but you won't get as much heat out of liquid fuel @ this point in time!