The Outdoor Stove FlexFire 6 by Wikatech in Test

In the test: the Outdoor Stove FlexFire 6 Premium by Wikatech. This is not only a large Hobo, but also an adaptable fire bowl with a chimney effect.

from Martin Gebhardt | Gear | reading time 4 Min
Updated on 12 August 2023 12.296 views 95% found this guide helpful
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The Outdoor Stove FlexFire 6 by Wikatech in Test

Martin Gebhardt

From Martin Gebhardt. Check out my “About me” page.


👉 The key facts from this guide

  • FlexFire 6 is a versatile outdoor stove: It can be operated with various fuels, including wood, charcoal, solid fuel, alcohol, or gel stoves.
  • Durable and quick to set up: The FlexFire 6 is made of a heat-resistant stainless-steel titanium alloy and can be assembled in less than a minute.
  • Stable and secure: Once correctly assembled, the FlexFire 6 stands stable and secure. It has a safety mechanism that prevents it from falling apart.
  • Flexible and adaptable: The FlexFire 6 can be set up in different configurations depending on your needs. You can build it as a FlexFire 4 or FlexFire 6.
  • No distortion: Despite intense heat, the FlexFire 6 does not warp, thanks to its robust stainless-steel titanium alloy.

I have the FlexFire 6 Premium in my hand.

And in this guide, I would like to introduce you to the outdoor cooker from Wikatech.

In the end, you can form an opinion about the FlexFire and decide if it could serve you in the future.

Let's start now and get straight to the facts.

That's why the FlexFire 6 convinced me

I love the blazing flames of hobos as much as the witch in Hansel and Gretel loves her oven.

I really like the Hobo stove - in the picture you can see me with the Flexfire 6
I really like the Hobo stove - in the picture you can see me with the Flexfire 6

Therefore, I have already had several outdoor stoves in my hands.

Cheap options for 17 euros from China.

Expensive variants that cost over 150 euros and are made of titanium.

And also self-built hobos, which were made with a CNC milling machine or simply from tin cans (instructions for a wood gasifier).

But the FlexFire 6 really surprised me. Especially with its four features, which I will now list for you, it convinced me.

Extremely large combustion chamber with ingenious fireplace effect

I like large fireboxes because then I don't have to constantly add wood.

The Flexfire 6 has a huge combustion chamber
The Flexfire 6 has a huge combustion chamber

You can already tell that I mostly use wood as fuel. If you use something else, like Esbit or alcohol, you naturally don't need such a large combustion chamber.

But for my needs, that can't be beat. Because what I don't like about the little hobos is that I constantly have to add new pieces of wood. In just a few minutes, everything is burned with the mini hobos.

Here at FlexFire 6, I can also use longer and thicker branches.

And I also noticed the excellent chimney effect. The FlexFire 6 draws excellently due to its size and creates an enormous heat in the combustion chamber.

The enormous heat in the combustion chamber allows you to cook with the embers long after the open fire
The enormous heat in the combustion chamber allows you to cook with the embers long after the open fire

Quickly assembled

At first, I was skeptical because the manufacturer Wikatech claims that the FlexFire can be set up in one minute.

I didn't manage to do that at the beginning. It took me a whole 4 minutes with the instructions. But, that was the first time.

Because then, after the third time, it will definitely work: The FlexFire 6 can be easily assembled in under a minute and is ready for use immediately.

The Flexfire 6 can be easily assembled in under a minute (In the picture, all parts of the Flexfire 6 Premium)
The Flexfire 6 can be easily assembled in under a minute (In the picture, all parts of the Flexfire 6 Premium)

Stable and secure

When the outdoor cooker FlexFire 6 is correctly assembled, it provides everything I need in terms of safety:

  • The FlexFire 6 does not wobble and stands stable on the ground.
  • The safety mechanism prevents it from falling apart, even if you shake and roll it
  • There are no sharp edges or corners.
  • Solid and durable - call it what you want - the FlexFire is sturdy

Take a look at the video below, where I assemble the FlexFire 6, ignite it, and also handle it roughly.

The safety mechanism prevents the parts from slipping apart
The safety mechanism prevents the parts from slipping apart

FlexFire 6: The Flex stands for flexible

I've been thinking for a long time: "I would rather not have 3 different hobos lying around at home."

Then my wish was heard and the FlexFire came onto the market.

Build the FlexFire 4 for a smaller fire pit and save on pack weight.

If you need a larger combustion chamber, you take the parts for the FlexFire 6. With that, you can easily cook pasta for four people.

The FlexFire 6 Premium includes all the parts to build it as FlexFire 4, FlexFire 4 Plus, FlexFire 6, or FlexFire 6 Plus. Brilliant!

You can also assemble the Flexfire 4 from the Flexfire 6 Premium set
You can also assemble the Flexfire 4 from the Flexfire 6 Premium set

And the plug system has even more advantages, which I will go into in more detail below.

Video: Building, Lighting, and Shake Test

In the video, I assemble the FlexFire 6 (for the second time). Additionally, I test the burner chamber with its fireplace effect and subject the stove to a stability test.

Key facts about FlexFire 6 at a glance

First: The FlexFire is a plug-in hob. That means its parts are assembled by plugging them together.

And here's what the FlexFire brings with it:

  • Multifuel equipment: can be operated with wood, coal, solid fuel, spirit, or gel stove
  • Chimney principle: efficient and resource-saving combustion of wood
  • Material: rust-free, heat-resistant stainless steel-titanium alloy (wall thickness: 0.8 mm)
  • Made in Germany
The instruction manual is multilingual for the FlexFire and there is a sturdy bag for the connector elements
The instruction manual is multilingual for the FlexFire and there is a sturdy bag for the connector elements

And here are the technical specifications:

  • FlexFire 6 assembled 113 x 173 x 173 mm
  • FlexFire 4 assembled 113 x 113 x 173 mm
  • Pack size 200 x 200 x 18 mm
  • FlexFire 6 Premium: Weight 1,245 g including pot holders and bag
The dimensions of Flexfire 4 and Flexfire 6
The dimensions of Flexfire 4 and Flexfire 6

The FlexFire is assembled

You have probably already noticed, right? The FlexFire is assembled by plugging it together.

And if you're familiar with hobos, you most likely know about foldable hobos. For example, a comparable product in size is the Bushbox XL by Bushcraft Essentials.

The fact is, the Bushbox unfolds faster than the FlexFire is assembled. BUT - the FlexFire is more versatile.

For me, putting it together is a big advantage because I can decide whether I want to take the Flexfire 4 or the Flexfire 6. Depending on my needs, I put together my Hobo for MYSELF.

And I see even more advantages here compared to foldable hobos:

  • Due to its modular construction, it is possible to start with the FlexFire 4 and expand it to the FlexFire 6 - without owning multiple outdoor stoves with fixed sizes.
  • If a connector is damaged, you can simply buy a new one and replace it.
  • All parts can be cleaned easily, as you have easy access to all sides (cleaning in the dishwasher is possible).
  • You can prevent deformations by turning the parts around (always rotate the walls and the burner plate).
  • Folding hobos have a folding mechanism, which is more susceptible than a plug-in system.
The FlexFire 6 is plugged in, which brings some advantages
The FlexFire 6 is plugged in, which brings some advantages

Does the Flexfire 4 or 6 warp?

With plug and fold hobos, there is a risk that the hinges or plug connections may warp due to intense heat.

But here I can tell you that after multiple tests, this definitely does not happen with the FlexFire. The heat-resistant stainless steel-titanium alloy with its 0.8 mm thickness delivers on its promises.

My conclusion: large hobo for cooking and warming up

I love the fireplace effect and the large hexagonal combustion chamber of the Flexfire 6. My 20 cm pans or my large pots fit perfectly and the fire burns excellently without having to do much.

Cook dinner for more than one person with the Flexfire 6
Cook dinner for more than one person with the Flexfire 6

Not only do you prepare food with the Flexfire 6, but it also serves as a fire pit - especially when you're out with friends.

Cooking with the Flexfire in the woods
Cooking with the Flexfire in the woods

And the outdoor stove is incredibly versatile and just right for my needs. It is even possible to assemble two FlexFire 6 and create two cooking surfaces.


WIKA Hobo Kocher FlexFire 4 mobiler Camping Ofen, Made in Germany, Outdoor Kocher Grill für Bushcraft Angeln Wandern Reisen Familien V4A Edelstahl Premium Esbit Trangia Gas Kocher für Jedermann

kein Preis ermittelbar (B07S6CK6G3)


Hobo Kocher FlexFire Premium mobiler Camping Ofen 2 in 1 Outdoor Kocher Grill für Bushcraft Angeln Wandern Reisen Familien V4A Edelstahl Premium Esbit Trangia Gas Kocher für Jedermann

kein Preis ermittelbar (B07S8GXFJ5)


If you just want to heat your water and are looking for something lightweight to take with you, the Flexfire 6 is probably too big.

Then rather choose the FlexFire 4 (518 g including pot holders and bag), the lighter version from the FlexFire product range.

Or take the LightFire from Wikatech, weighing only 299 grams. It also fits perfectly for ultra-light trekking.


Thank you to Wikatech for providing me with the Flexfire 6 Premium for testing. I was not paid to write this review.

And now to you: Would the Flexfire 6 be something for you? Or do you already own it? How do you like the hexagonal Hobo?

Reading tip: here you will find an overview of all outdoor cookers.

Take care, Martin
Martin Gebhardt

Author of the guide


Martin Gebhardt

Hey, I'm Martin. On my blog, you will learn the basics and numerous details about living in the wild. I think survival, bushcraft and the good life in nature are the keys to happiness. Find me here on Instagram or on YouTube. You can find more about my mission on the About Me page.

Since this is a gear guide, here ...


🤝8 reasons to trust my recommendation

  1. Practical Experience: I have tested most of the products I recommend under extreme conditions myself.

  2. Independence: As a wilderness mentor, I am not tied to any specific brands - this means my recommendations are unbiased.

  3. Expertise: My many years of experience allow me to understand the intricacies and details of various products that a layperson might overlook.

  4. Target group understanding: I understand the needs and challenges of outdoor enthusiasts, from beginners to seasoned experts.

  5. Quality focus: I attach great importance to quality and longevity. These are characteristics that are crucial in the wild.

  6. Clear communication: I try to explain the pros and cons of each product clearly and understandably so that you can make an informed decision.

  7. Currentness: I always keep my guides up to date and adapt them to new findings or products.

  8. Community Feedback: I work in wilderness schools, teach courses myself, attend courses and am active in various outdoor and survival communities and therefore integrate the feedback and experiences of others into my recommendations.

So when I introduce the best survival knives or flashlights, you can be sure that every recommendation is based on solid experience and extensive knowledge.

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