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Gear talk: The Edelrid Hexon multi-fuel stove

Edelrid Hexon multi-fuel stove
Edelrid Hexon multi-fuel stove

It has been a few years since Three Points of the Compass purchased this multi-fuel stove specifically for more challenging sub-zero winter backpacking trips. My terrific Edelrid Hexon stove has seen far too little use due to a series of mild winters coinciding with improvements in gas stove design.

Generator loop over burner
Generator loop over burner

Edelrid are a German outdoor gear company specializing in climbing equipment, founded in 1863 by Julius Delmann and Carl Rider. The company have long been innovative in their approach to gear. Starting out as strand and cord specialists, they released the first braided fishing lines in 1880 and invented the kernmantel rope in 1953 (paracord is a kernmantle rope). They followed this with the world’s first ‘energy’ rope in 1964 and the first rope harness the following year, the first floating rope for canyoning in 1994 and the first folding climbing helmet in 2007. Edelrid became part of the Vaude group in 2006 and around 60% of their gear production emanates out of Germany. From that last stat we can see that a large percentage of their branded goods comes from outside that country. This once included the Hexon multi-fuel stove, manufactured overseas to Edelrid’s specification.

The Edelrid Hexon multi-fuel stove was released in 2010 and quickly attracted a lot of favourable attention. However it also attracted a great deal of criticism due to a couple of teething problems in the first generation. There were reported issues with the screw connector to the fuel bottle. This was promptly addressed by Edelrid and the connector improved for the next generation. However the biggest issue was that the quite squarish legs on the stove could warp with prolonged use. The misshapen legs didn’t stop the stove working, but many users were unhappy. Sufficiently so that in 2014 Edelrid released a second generation of the stove with reprofiled legs/pot stands that no longer warped, or at least not to the degree that they had previously. These stoves can be identified by the pot supports being angled away from the stove at the top. It is the second generation Hexon that I have.

First generation Edelrid Hexon stove with 'square' pot supports. These often warped when heated for any length of time
First generation Edelrid Hexon stove with ‘square’ pot supports. These often warped when heated for any length of time
Second generation Edelrid Hexon, with angled pot supports
Second generation Edelrid Hexon, with angled pot supports and improved connector. The drawstring baggie keeps a sooty stove away from the rest of your gear

The two reported problems encountered with the first generation Hexon are also no doubt partly responsible for the resultant poor sales of the stove, with few people aware that the issues had been rectified while retailers often continued to show images of the first-generation stove without reprofiled legs. Even Edelrid can be faulted in this respect. When I purchased my second generation stove it came in a box illustrating the first-generation stove. While Edelrid have withdrawn the Hexon stove from sale, it can still be purchased from some outdoor gear vendors, but it is getting harder to find.

What is included with the Edelrid Hexon on purchase
What was included with the Edelrid Hexon on purchase

The 224g Edelrid Hexon is amongst the lightest multi-fuel stoves ever made. It is also one of the very few stoves that will operate on canister gas as well as white gas/Coleman fuel, unleaded petrol, paraffin (kerosene) and even diesel, though it is extremely smoky with diesel and prone to clogging up. Nor does it perform particularly well with paraffin either. Three Points of the Compass has mostly run this stove on Coleman fuel, butane mix canisters, unleaded petrol and most recently almost exclusively on Aspen-4. This is a purer form of ethanol free petroleum distillate. Unleaded petrol is not a good choice of fuel as it contains various additives that can clog both fuel line and jet, but it is an option. Just not a very good option, as it means more frequent cleaning is required and ‘in the field’ clogging may occur. Despite its multi-fuel capability, the Hexon operates with just the one jet, that doesn’t require switching when changing fuel type.

Using Aspen-4 doesn’t result in zero soot (carbon). All of the heavier distillates produce some to a degree, particularly while priming or if there is any degree of incomplete burn, but there does seem to be a minimal amount produced with the Hexon when running on Aspen-4. Running the Hexon on gas instead of liquid fuel means just about zero mess is created.

While the thread size of the Edelrid fuel bottle is common to standard Primus and most other liquid fuel bottles, the pump cannot be used with the smallest of the Primus fuel bottles as the internal gubbins do not quite fit inside the bottle.

Rotating pump support
Rotating pump support
Edelrid Hexon pump
Edelrid Hexon pump

The stove itself is based around a six-sided (Hexagon=Hexon) body, in which a fairly typical multi-fuel burner bell is bolted, with priming pad at the bottom, jet in the base and flame spreader above. The body anchors three fold out support legs and an inlet from a fuel line, from which a generator loop directs the fuel up and over the flame and back down to the jet.

Underside of Edelrid Hexon
Underside of Edelrid Hexon


  1. Connector and O-rings
  2. Valve knob
  3. Pot supports
  4. Fuel bottle
  5. Pump
  6. Pump c30 times to pressurise
  7. Pump foot
  8. Ignition hole
  9. Pre-heating pad
  10. Jet

Note the generator loop that runs from the fuel hose, up and over the flame and back down to the stove feed below. This is where fuel is heated and vaporised and is an essential element of this all-conditions multi-fuel stove.

Edelrid Hexon specification
Edelrid Hexon parts and specification

The Hexon has three swivel out titanium pot support legs. Each of these is under tension due to being inserted into offset holes. Supports spring open to the correct 120 degree angle, or fold closed, into the body to make a decently compact unit, for packing and transport. As mentioned above, those on the second generation stove are an improved shape, sloping away from the burner, this reduces the chance of their warping when extreme heat is produced. The flat(ish) tops of the legs support a pot 85mm above the ground and the bottom edge of each of the three supports is shaped so as to stand clear of bumps and lumps on an uneven surface. These support legs are easily removed from the body of the stove when stripping it down for cleaning or maintenance. They are also removed if fitting the burner to a rather nifty adapter plate which allows it to be fitted inside the classic Trangia 25 and 27 Storm Cookers. I looked at that mod in a separate post.

The Hexon is a remarkably well designed and manufactured stove. Not only is it one of the lightest multi-fuel stoves ever made, but is also one of the smallest when folded. It compacts down to a size that will slip into quite small pots. If the folded stove really is a really awkward or tight fit or doesn’t quite squeeze into a pot, then unclip one or more of the three pot support from the main body. Though this may not even be an issue for most typical users. For winter use it is likely that greater volumes of water are being heated for hot meals and drinks, so it is also possible that a larger pot is being carried than might be used in warmer months on trail. Snow melting might be planned, which requires a large pot.

Edelrid Hexon is a remarkably compact stove when folded
Edelrid Hexon is a remarkably compact stove when folded
Edelrid Hexon inside 850ml MSR Titan Kettle
Edelrid Hexon inside 850ml MSR Titan Kettle
Edelrid Hexon inside 900ml Evernew pan
Edelrid Hexon inside 900ml Evernew pan
Removing the three pot support legs makes for an even more compact unit
Removing the three pot support legs makes for an even more compact unit
Removing just one pot support means the Edelrid Hexon will fit in a Toaks 750ml pot
Removing just one pot support means the Edelrid Hexon will fit in a Toaks 750ml pot

The Hexon’s 320mm flexible braided fuel hose will screw directly on to lindal valved gas canisters. This connector also screws directly to the supplied aluminium and plastic fuel pump when used with liquid fuels in a fuel bottle. The crimped brass connector joining the hose to the valve connector swivels. This allows the fuel bottle or gas cart to be flipped as required. A small Edelrid fuel bottle is supplied with the stove and 0.4lt and 0.75lt branded fuel bottles are available as stand-alone purchases. Though increasingly, this isn’t ‘are’ but ‘were’ available. A large fuel bottle doesn’t necessarily need to be carried. All that is required for most trips is the small fuel bottle that can be attached to the pump and pressurised, and any spare fuel can be carried in another bottle, possibly even a lightweight PET bottle. Though note that petrol will attack and degrade polycarbonate, and High Density Polyethylene (HDPE) is safer.

The 115g pump is well made and very similar to that found on a couple of other stoves from other manufacturers. More on that later. The pump can be easily connected to the braided fuel hose by turning the little plastic knob opposite the screw connector, there is no need to twist and turn the whole affair to connect the two. There is a small red plastic slip cover to protect the thread from debris, this is easily lost though I have somehow managed to hang on to mine. It isn’t essential however, simply a desirable. There is a spring tensioned right-angle bar that is pulled out slightly and turned through ninety degrees to keep the fuel bottle correctly oriented for supply.

fuel bottle and pump
Branded Edelrid fuel bottle and pump

You may have noticed the small white filter on the inlet tube on the pump that sits inside a fuel bottle. This will filter out larger impurities from liquid fuels before they become an issue further into the stove workings. Not all liquid fuel stoves have this, though they should as this is the correct place to fit a filter, not further into the system. The generator loop has a permanently fitted internal metal cable that can be periodically used to clean deposits. I shall follow up with a separate blog on that simple maintenance process.

A flexible thick foil windscreen comes with the stove. This measures 780mm x 140mm, weighs 56g and has most of the exposed edges turned to lessen the chance of cuts. I don’t use this screen, have never used this screen, preferring either an old battered foil shield I have had for years, or a lighter titanium foil that also packs down smaller. Most frequently I simply just use a pack, sit mat or similar, to provide protection from the wind. Be aware, there is a lot of heat from this stove and items of gear cannot be sat too tightly around it otherwise they will go up in flames themselves.

Edelrid Hexon, priming, note flame above. This stove CANNOT be used inside a shelter
Priming Edelrid Hexon, note fireball from flame. This stove CANNOT be safely primed inside a small shelter

In common with almost all pressurised multi-fuel stoves (other than the now discontinued Soto Muka), when run on petroleum based liquid fuel, the Hexon requires priming prior to use. It is not difficult but must be done properly. Once the pump is screwed onto the fuel bottle, pump about 30 times to pressurise the bottle. Turn the pump foot so the bottle doesn’t roll, with the ‘on’ marking facing upward. Tweak the valve control on the pump for a few seconds so that pressurised fuel is released and soaks the felt pre-heating pad below the burner. Turn the valve off. Light the fuel through the small hole in the side of the stove. The soaked fuel will burn for up to a minute while heating the generator coil that loops over the burner. When it dies down, turn the fuel control valve until a blue roaring burn is realised. It is fuel vapour that is burnt and a hot and efficient blue flame is created.

If using the stove for any length of time it will require re-pressurising. Simply do another ten pumps or so until the flame audibly and noticeably picks up again. When extinguishing the stove, flip the fuel bottle over so the ‘off’ faces upward. After half a minute or more, the flame will die down. The control valve can now be turned off, or the pressure inside the fuel bottle allowed to vent. Allowing the fuel bottle to depressurise lessens the chance of getting fuel on the hands when unscrewing the pump.

The Hexon can very easily be run off a gas canister. While this negates much of the added functionality that the Hexon provides, it is an option and enables a clean stove to be operated, with no mess from priming or soot. Connect the valve connector at the end of the braided fuel hose to a lindal valve gas cart. Open the valve and light the gas at the burner, just as with any conventional gas stove. Turn off when done. If it is cold weather, the stove can also be run with an inverted gas cart supplying a liquid feed. Run for upward of thirty seconds in normal upright gas supply mode to heat the generator loop, then flip the gas cart. The valve control will then usually require turning down a little due to the increased fuel supply.

Fuel bottle inverted to 'off' position- purging the fuel line of liquid fuel prior to turning the control valve off
Fuel bottle inverted to ‘off’ position- purging the fuel line of liquid fuel prior to turning the control valve off. It is best to simply let the bottle depressurise by leaving the valve open once the bottle has been flipped to ‘off’ and all the fuel in the hose has burnt off.

The valve control is situated by the fuel canister so there is no need to approach the stove body when adjusting the flame. The valve control is small but I can handle it well enough with gloves on. It is reasonably sensitive, more so with gas, and once the stove is burning well, it can be turned down enough to maintain a simmer. But it is a hot flame and a low simmer can be difficult to obtain. If using liquid fuel, a simmer is easier to obtain if less pressure is created in the fuel bottle. Power output is 3000W on canister gas and in excess of 10000W on white gas. Fuel consumption is in the region of 80-240g/hour. A litre of water is bought to the boil in around three minutes, though that will depend on conditions and altitude.

Hexon running from upright gas cart, with standard gas feed
Hexon running from upright gas cart, with standard gas feed
Hexon running from inverted gas cart, with liquid gas feed
Hexon running from inverted gas cart, with liquid gas feed. This is only possible after first running in ‘normal’ gas feed for 30-45 seconds.

There is no need to change jets when changing fuels. While all compatible fuels utilise the fitted .37mm jet, some fuels such as diesel and paraffin/kerosene struggle. An earlier version of the stove included a sintered brass insert to the inlet to the jet, this insert was later excluded, as on mine. The sintered insert acted as a filter to catch any impurities before they blocked the jet. Presumably it was found that this was no longer required. This is no loss as while a jet can usually be cleaned or cleared with a pricker needle (included on the stove’s multi-tool), if the jets insert were blocked or clogged there is no way of cleaning it.

Is the Hexon is a noisy stove? No. In common with most pressurised liquid fuel stoves for four season use, the Hexon is a very noisy stove. This is easily rectified retrospectively by fitting an after-market silence cap. This is an expensive accessory, and it wasn’t until 2022 that I eventually bit the bullet and purchased one. The difference it made was startling.

The small repair and spares kit provided with the Edelrid Hexon has all that is required to service the stove in the field, plus some essential spares
The small maintenance, repair and spares kit provided with the Edelrid Hexon has all that is required to service the stove in the field or home, plus some essential spares- a well equipped 43g Edelrid branded multi-tool, with which the stove can be almost completely stripped down. A tube of maintenance oil, rubber pump cup, spare jet, and O-rings; sizes- 5.34 (part no. U-004), 6.6 (part no. P-3), 12.6 (part no. P-9), 6.13 (part no. U-005), 11.6 (part no. P-8), 15.98 (part no. U-014).
A spare .37 jet is included in the Hexon repair kit
A spare .37 jet is included in the Hexon repair kit. This can be used with both gas and liquid fuels. A pricker for the jet is included on the multi-tool

Also included with the stove on purchase is a really handy maintenance, spares and tool kit. The 62g kit is a small plastic case with screw-off cap, that includes just about anything required to almost fully disassemble, reassemble, service and maintain the stove. This is effectively the same spares kit provided for the Korean made Kovea Booster+1 (model KB-0603), which not only points at an origin for the pump, but also means I can still get my hands on just a few spare parts for the Hexon. The simple multi-tool included also has a pricker needle to clean the jet (no shaker jet technology here!).

Removing jet with multi tool
The steel generator that runs over the burner has a kink in it that allows for easier removal of the jet with the dedicated multi-tool.

There are quite a few small parts to be found when taking this stove apart, especially the pump, that has small springs etc that are easily lost. A cloth spread on the ground on which the stove can be dismantled, together with good light and great care, are definite requirements if attempting field repair. There are no O-rings on the stove itself, just the pump, so the repair kit could be reduced if it was only being run on gas.

I mentioned earlier the problems that a buying public had in comprehending that the problems with the first generation Hexon had been resolved with the second generation. Almost all reviews of the Edelrid Hexon are from a few years ago and cover the first generation, complete with the faults then exhibited. Coupled with that, the Hexon was getting to be quite an old model and Edelrid have now stopped selling it. This is a great shame as, even after all these years, it is still one of the lightest and best multi-fuel stoves available. There are still a handful of stockists that have new old stock, but they are becoming harder to find. Most sellers with stock are unsurprisingly based in Germany. Few UK backpackers now seem to give this stove much attention, possibly caught up with better known brand names or whatever latest greatest lightweight offering is coming out of China or Korea.

Who made the Edelrid Hexon?

It is interesting to surmise who actually made this stove. I have been able to obtain no information from Edelrid themselves and even when they still listed the stove amongst their products, they included no information as to where it was made. Nor is any information to be gleaned from the instruction manual. Some informed guesswork does point at a possible source, or sources.

The main Edelrid Hexon stove body shares many similarities with the Chinese made Fire Maple FMS-F3 and F5. The stove body on the FMS-F3 is very similar to the Hexon but pot supports are different. The sprung legs on the body of the liquid fuel FMS-F5 surely point at a common lineage, though those on the Hexon are a better shape. But note that each of these Fire Maple stoves has a reduced multi-fuel capability compared to the Edelrid Hexon.

Fire Maple FMS-F3
Fire Maple FMS-F3 has a very familiar body shape
Fire Maple FMS-F5
Fire Maple FMS-F5, folded. While this has a reduced-in-bulk, more triangular than hexagonal body, the family lineage is pretty obvious. Note both the similar sprung pot support legs and the less robust plastic pump.
Fire Maple FMS-F5
Fire Maple FMS-F5, opened. This stove is a pared down version of the FMS-F3 and Hexon and has also been sold branded as the Eifel Outdoor Equipment Thorium

We saw above that the spares kit included with the Edelrid Hexon contains the same items as found in the spares kit for the Korean manufactured Kovea Booster+1 (KB-0603), Dual Max & Hydra stoves. Kovea make stoves under their own name as well as products for MSR and others. The Booster+ stove was previously marketed as the Markill Phoenix stove. Markill are a German company and part of the Vaude group, a group that Edelrid have been part of since 2006. That said, just to muddy the waters further, the pump, fuel hose and flame spreader are also very similar to those found on the Chinese Brunton Lander and BRS-27 stoves! It does look as though these are Chinese clones of Korean made pumps.

Kovea multi-fuel pump
Kovea multi-fuel pump
BRS-27 pump
BRS-27 pump

It appears we have the best multi-fuel burner from one manufacturer, that combines the best of two of their stoves, together with a more robust pump from another manufacturer. Would a German outdoors equipment supplier source products for the one stove from both Korean and Chinese OEM manufacturers, or is it wholly Korean in origin? Or did Edelrid manufacture any parts themselves, or outsource locally, to their specification? Who actually pulled all the disparate parts together as a manufactured whole, and where? It is all a bit of a mystery.


By utilising certain techniques and strategies, most campers in sub-zero conditions will manage just fine with a single fuel stove. This could even be an alcohol/meths set up, or even a gas canister stove. It may require the very best of manufacture, practised experienced use and protection from the elements, but it can be done. For those wanting to retain multi-fuel capability while still keeping the carried weight as minimal as possible, it can be a struggle.

Edelrid Hexon gen 2 and pump with Primus OmniFuel 3289 and pump
Edelrid Hexon gen 2 and pump (total: 339g), with Primus OmniFuel 3289 and pump (total: 452g)

There are obvious good alternatives to the little multi-fuel Edelrid Hexon (339g- stove plus pump), though in common with the Hexon, some of these are getting harder to source due to having been discontinued or ‘upgraded’. My old Primus Omnifuel has undergone numerous incarnations over the years. Upgrading and improving usually resulting in a weight increase on many makes and models of stoves. Note that not all multi-fuel stoves will run off gas, but from those that do, these include the MSR Whisperlite Universal (344g- stove plus pump), Optimus Nova (450g stove plus pump), Optimus Polaris Optifuel (476g- stove and pump), Primus OmniLite Ti (340g- stove plus pump), Soto StormBreaker (448g- stove and pump). All have enviable reputations but in common with the Edelrid Hexon, also have their individual strengths, detriments and foibles. Some will be heavier, or bulkier, or require excessive pumping, or struggle to simmer (Whisperlite, I’m looking at you!) Possibly the closest stove to the Hexon is the Kovea Booster+1, but that is a good deal heavier, befitting its increased robustness, having been built for expedition use. I might show a couple of the alternatives that I have, in a further blog. But they are heavier options if lightweight backpacking.

The fuel flexibility of the Hexon means that I can fall back on alternative fuels if necessary – my ace-in-the-hole. The stove can be carried on trail with both a fuel bottle with installed pump and a small gas canister for back-up or convenience. This is the type of stove that I get actual pleasure from tinkering with and using. It is satisfying to unfold and prepare, pump and pressurise, prime well, and get a roaring hot flame. But let’s face it, all I want to do on a cold dark evening on trail is produce a hot brew and hot meal with as little fuss as possible. If conditions are challenging, then this stove could be the best option. If less challenging, then another stove might be preferred. Is this the best stove I own? No. But I must remember, the best stove is the one I have out there with me!

Edelrid Hexon, full bore
Edelrid Hexon, full bore on a frozen morning

The Edelrid Hexon remains a simple, light, low bulk, tried and tested, effective stove for anyone looking at multi-fuel options, particularly where gas is one of the fuels. My Hexon doesn’t see much use these days. It is most suited to lightweight backpacking, delivering excellent performance in prolonged cold weather, where large volumes of water or meals are required. Hopefully the next ice age kicks in soon, and I’ll be stuffing this in to a pack again.

Three Points of the Compass occasionally takes a glance at items of gear, including a handful of other stoves. While some are fairly new, many, such as the Edelrid Hexon, are now quite old. Old does not mean obsolete. These reviews get added to occasionally as I get round to it. Links can be found here.

Edelrid Hexon multi-fuel stove burning Aspen 4 fuel
Edelrid Hexon multi-fuel stove burning Aspen 4 fuel

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