Fellkit

Primus

Primus Mimer

  • Weight: 4/10 How much it adds to your pack.
  • Packed size: 3/10 How much room it takes in your rucksack.
  • Boil speed (still air): 7/10 How fast the maker says it boils 1 litre in still air. Wind slows every stove: see Wind performance.
  • Wind performance: 3/10 How well it keeps boiling in a breeze, as sold, without an extra windshield.

No shop we checked has it in stock

RRP £26, checked 20 Oct 2026.

Checked 8 Nov 2026. See the shops

Cooking for one to three people with a frying pan or a large pot

Fuel
Gas
Weight
195 g
Boil 1 L, still air
3:30
Windshield in the box
No
Packed size 1.236 L, 12.3 cm long and 10.4 cm across Compare with a 2-litre bottle

Shorter than a 2-litre bottle and about as wide as one. Drawn to scale.

Where to buy

Cotswold Outdoor £19.89 Out of stock. Shop page says not available. Shop shows an RRP of £34.99. Free Click & Collect.

View at shop: Cotswold Outdoor

Primus £26 Out of stock. Regular price £26.00. Free shipping over £49, £6 under £49; delivery within 2-4 working days.

View at shop: Primus

Prices 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 4/10

How much it adds to your pack. 4: A bit below average.

Primus's international page gives 195 g (its UK page gives none). Outdoor Ukraine weighed 240 g on a unit bought around 2003-04, which may not match today's. Both are in the 180-299 g band.

Packed size

From maker's figures 3/10

How much room it takes in your rucksack. 3: Below average. Fine for some trips, not others.

Primus's international page lists the stove as diameter 123 mm, height 104 mm and width and depth 125 mm (its UK page gives none). It does not fold, so we work it as a roll, diameter 12.3 cm by height 10.4 cm: 3.14 x 6.15 x 6.15 x 10.4 = 1,236 cm3, about 1.24 L, in the 0.6-1.59 L band. As a box of 12.5 x 12.5 x 10.4 cm it would be 1.63 L, just over the 1.6 L line.

Boil speed (still air)

Estimate from maker's specs: boil time figure 7/10

How fast the maker says it boils 1 litre in still air. Wind slows every stove: see Wind performance. 7: Better than most.

Estimate from maker's specs

Wind performance

Estimate from maker's specs: windshield in the box 3/10

How well it keeps boiling in a breeze, as sold, without an extra windshield. 3: Below average. Fine for some trips, not others.

Estimate from maker's specs

In short

Good for

  • Cooking for one to three people with a frying pan or a large pot
  • Car camping and short trips where weight does not matter

Strengths

  • Wide flame suits big pots and frying pans (Primus; Outdoor Ukraine)
  • Nothing folds, so there is nothing to break or snag; Primus has made it for over 40 years
  • Primus rates it at 2,800 W and gives 3 min 30 s for a boil; Outdoor Ukraine timed 1 litre in 4 min 20 s using 20 g of gas, and found it quiet, with a calm, even flame

Weaknesses

  • Heavy for a backpacking stove: 195 g (Primus), 240 g on Outdoor Ukraine's scales
  • Does not fold, so it packs at about 1.2 L; the carry bag is tight (Outdoor Ukraine)
  • No igniter, no regulator, and not for winter use
  • Tall and top-heavy on a canister; the shallow pot supports let a rounded pot rock (Outdoor Ukraine)
  • The plastic valve handle is short, so it is awkward to adjust under a large pot (Outdoor Ukraine)
  • Slower than Primus's figure in the one hands-on test: Outdoor Ukraine got 4 min 20 s for 1 litre against 3 min 30 s

Sources

We haven't tested this ourselves. Every score comes from these specs, tests and reviews.

ShowHide sources (3)
  1. Primus UK: Mimer Backpacking Stove, product page Specs, 20 Oct 2026
  2. Primus (international site): Mimer Backpacking Stove, product page with its specification block (page in Swedish, figures in English) Specs, 20 Oct 2026. Used for: weight, packed size
  3. Outdoor Ukraine (Kyrylo Yasko): Review of the Primus Mimer burner (his own unit, bought around 2003-04) Review, 6 Nov 2014. Used for: weight