Primus Ulti Stove System 1.7

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The Ulti Stove System stands out for expedition chefs and adventurers with its durable build and supreme fuel efficiency.

Primus says: 

Ulti Stove System is the most wind-resistant and powerful cooking solution we’ve ever made. With the goal to excel in even the harshest environments, this all-in-one system offers the most reliable cooking solution for expedition chefs worldwide. This compact system easily holds everything needed to prepare a hot meal pretty much anywhere.

Set up this high-efficiency stove with ease, as this system was designed and developed to be used with gloves on. Unpack and set-up the burner with three sturdy legs on any type of ground, the low center of gravity creates a stable unit. Next simply lock the handle to the open position and nest the hard-anodized aluminum pot with the integrated heat exchanger on the burner and you are ready to cook.
The burner boasts of a combination of catalytic combustion and infrared radiation that produces a 10,000 BTU (3000W) heat source that boils water regardless of the weather conditions. The reliable burner also offers a pressure regulator to cook at the most extreme environments from high-alpine snow melting to dry desert expeditions.

When done cooking, the powerful burner legs hold the hose and valve into the base of the burner and then easily packs back into the pot. Place the lid on and fold the handle over to lock the system together for a rattle-free, packable kitchen. Packed all together, this offers a protective shell for the burner.

Available in two sizes. Ulti Stove System 1L feeds 1-2, while the 1.7L version is best for 2-3 people. A larger 2.7L pot is also available which is suitable for a slightly larger group or when melting snow is important. All three pot sizes can nest together with the burner.

Our Verdict

Designed for extreme conditions, the Primus Ulti Stove System 1.7 combines wind resistance, efficiency, and packability, making it an excellent choice for cold-weather and high-altitude cooking in a group.

At 713 grams, this system features a catalytic infrared burner that eliminates the traditional blue flame, ensuring reliable performance even in harsh winds. Its integrated pressure regulator delivers consistent heat output regardless of altitude or weather. Unlike other enclosed burner systems, the Ulti Stove uses a remote canister hose, allowing you to invert the fuel canister for enhanced cold-weather functionality. This thoughtful design also improves safety, enabling you to quickly shut off the gas flow in case of a boil-over.

The stove’s sturdy, low-profile design and foldable legs provide exceptional stability on various terrains. The 1-litre pot, equipped with an integrated heat exchanger, maximises fuel efficiency and conveniently stores the burner, hose, and a 100g fuel canister. The locking handle ensures the entire system packs compactly and securely, a practical feature for minimalist adventurers.

While it may not be the lightest or most compact option, its robust design and reliable performance in extreme conditions make it a standout choice for serious expeditions.

– Reviewed by Ultralight Outdoor Gear

In-depth Reviews:

• Primus Ulti Stove Review – ”Very impressed with the performance of the Ulti and look forward to using it throughout the upcoming winter season.”

Features

• Catalytic combustion and infrared radiation burner has no blue flame to be extinguished
• Pressure regulator enhances efficiency and ensures consistent heat output
• Remote canister hose system allows the fuel canister to be flipped upside down for use in colder weather
• Disk burner with low center of gravity and sturdy legs can be used on a variety of ground cover and provides a stable cooking base
• Legs fold under and into the burner base to lock in hose and valve into a compact unit
• Fuel-efficient pot system securely sits on burner when in use and holds/protects a 100g
• Sturdy handle allows you to easily hold the pot and folds over the lid to lock the stove system together in an impact protected package

Specifications

• Weight: 713g
• Capacity: 1700ml

Material & Construction

• Hard-anodized aluminum pot and lid with pour spout has integrated heat exchanger and webbing handle

Help & advice:

• The Ultimate Guide to Ultralight Stoves
• About Primus