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Primus

Primus Lite Ultra XL Stove System 1.2L

Mid Confidence: Medium
  • Weight: 8/10 How much it adds to your pack.
  • Fuel use: 5/10 How much fuel it burns to boil a litre in calm air: less fuel to carry.
  • Boil speed (calm air): 7/10 How fast the maker says it boils 1 litre in calm air.

Lowest price we found

£134.99 at Ultralight Outdoor Gear

In stock. Free delivery. Checked 8 Nov 2026.

RRP £149.99, checked 20 Oct 2026.

Go to Ultralight Outdoor Gear Compare 2 shops

Solo walkers or pairs who want the Lite Ultra weight with a bigger pot

Fuel
Gas
Weight
290 g
Pot size
1.2 L
Boil 1 L, calm air
4:20
Fuel per litre
Not published
Packed size 14 cm long and 12.3 cm across Compare with a 2-litre bottle

Shorter than a 2-litre bottle and a bit wider than one. Drawn to scale.

Where to buy

Ultralight Outdoor Gear £134.99 In stock. Free delivery. The page is titled Lite Ultra XL 1.0L and gives a 1 L pot, but its listing matches the model Primus lists as 1.2 L.

View at shop

Primus £149.99 In stock. Free delivery. Free delivery over £49, £6 under (Primus UK shipping policy page).

View at shop

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 8/10

How much it adds to your pack. 8: Clearly better than most.

Primus gives 290 g (spec table; burner and pot), in the 250-349 g band.

Fuel use

Estimate from maker's specs: fuel type (no fuel use figure published) 5/10

How much fuel it burns to boil a litre in calm air: less fuel to carry. 5: Does the job. Average for wild-camping gear.

Estimate from maker's specs

Boil speed (calm air)

From maker's figures 7/10

How fast the maker says it boils 1 litre in calm air. 7: Better than most.

Primus says 2 min 10 s for 0.5 litre, scaled to 260 s for 1 litre (scaled), in the 210-269 s band. Altitude Sports quotes 2 min 30 s for the same stove.

In short

Good for

  • Solo walkers or pairs who want the Lite Ultra weight with a bigger pot
  • Three-season trips where a 1.2 L pot can boil water for two meals
  • Weight-conscious walkers who still want a pot that locks onto the burner

Strengths

  • 290 g for burner and pot, in the 250-349 g weight band
  • 1.2 L pot with heat exchanger, low-profile lid and titanium handles (Primus)
  • Pot supports in the box let you use other pots on the burner (Primus)

Weaknesses

  • No independent hands-on test found yet, so wind and ease of use are estimates, not reviewed scores
  • Primus publishes no fuel-use figure
  • No pressure regulator, so power drops as the canister empties or gets cold; not for winter
  • Shop pages disagree on the pot: Ultralight Outdoor Gear still says 1.0 L, Primus now says 1.2 L for the same product code

Sources

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

ShowHide sources (1)
  1. Primus: Lite Ultra XL Stove System 1.2 L product page (specifications: weight, volume, boil time, output) Specs, 20 Oct 2026. Used for: weight, boil speed (calm air)