Primus
Primus OmniFuel
- Weight: 2/10 How much it adds to your pack.
- Packed size: 4/10 How much room it takes in your rucksack.
- Boil speed (still air): 8/10 How fast the maker says it boils 1 litre in still air. Wind slows every stove: see Wind performance.
- Wind performance: 5/10 How well it keeps boiling in a breeze, as sold, without an extra windshield.
Winter and high-altitude trips: it burns liquid fuel (white gas, petrol, kerosene) or gas from a canister, and Primus sells it as an expedition stove for extreme cold and altitude
- Fuel
- Liquid
- Weight
- 350 g
- Boil 1 L, still air
- 3:10
- Windshield in the box
- Yes
Packed size 0.825 L, 14.2 x 8.8 x 6.6 cm Compare with a 2-litre bottle
Shorter than a 2-litre bottle and about as wide as one. Drawn to scale.
Where to buy
Alpinetrek £182.66 In stock. Free delivery. Not the kit with a fuel bottle and pouch. Price includes duties and taxes. The page shows £209.95 struck through (its own earlier price). Free UK delivery from £85.
View at shop: AlpinetrekPrimus £214.99 In stock. Free delivery. Free UK delivery over £49.
View at shop: PrimusPrices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More
Our ratings (out of 10)
1 to 10, compared with the whole market. Each says what it's based on. How we score
Weight
From maker's figures 2/10How much it adds to your pack. 2: A weak point.
Primus gives a product weight of 350 g for the stove as sold (part P328989, which comes with its ErgoPump, multitool, windscreen, heat reflector and bag). Primus does not say exactly what the 350 g covers; Alpinetrek lists 375 g for the burner, fuel line, ErgoPump, windscreen and pouch, and Primus's shop data shows 375 g as the shipping weight. Every reading is in the 300 g and over band, even the burner alone at 350 g.
Packed size
From maker's figures 4/10How much room it takes in your rucksack. 4: A bit below average.
Primus's specification table gives 142 x 66 x 88 mm (depth x width x height), worked as a box: 14.2 x 8.8 x 6.6 = 825 cm3, 0.825 L, in the 0.6-1.59 L band.
Boil speed (still air)
From maker's figures 8/10How fast the maker says it boils 1 litre in still air. Wind slows every stove: see Wind performance. 8: Clearly better than most.
Primus's specification table gives 3 min 10 s (190 s) for 1 litre in a regular pot and 2 min in its PrimeTech heat-exchanger pot; its UK page says "just over three minutes". We use 190 s, in the 190-229 s band, right on its lower edge (under 190 s would be band 5).
Wind performance
Estimate from maker's specs: windshield in the box 5/10How well it keeps boiling in a breeze, as sold, without an extra windshield. 5: Does the job. Average for wild-camping gear.
Estimate from maker's specs
In short
Good for
- Winter and high-altitude trips: it burns liquid fuel (white gas, petrol, kerosene) or gas from a canister, and Primus sells it as an expedition stove for extreme cold and altitude
- Long trips where you refill from a pump or fuel station and do not rely on canisters
- Exposed camps, as the windscreen and heat reflector come in the box
Strengths
- Burns liquid fuel or canister gas, so one stove covers different trips
- Windscreen, heat reflector, multitool and spare jets come in the box
- 3000 W and a 190 s boil for 1 litre in a regular pot, quick for a liquid-fuel stove
- Some Camping Stoves (2015) calls its simmering amazing
Weaknesses
- 350 g and about 0.83 L packed, heavy and bulky next to a canister stove
- Needs priming and a pump, and the jet needs cleaning now and then
- Not enough reviews of this version to score wind or control
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.