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The Core is an extremely efficient, ultralight, tunable multi-fuel stove that packs flat and can be transformed to meet any condition.
The Core is an extremely efficient, ultralight, tunable multi-fuel stove that packs flat and can be transformed to meet any condition.
459 backers pledged $41,011 to help bring this project to life.

About

$41,011

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Camping season is right around the corner and if you're like me you'd probably like a killer new piece of camping gear to mess around with this summer. So how about an ultralight, super efficient, tunable, wood gas camp stove. I designed a new one and if you become a backer I can get one to you just in time for camping season!

The CORE is a double walled, multi-function wood burning, wood gas stove. It's designed to inject superheated air into its own exhaust to re-burn it. This translates into more efficient use of fuel energy, less smoke, and less heavy black tar soot on your pot. It can be tweaked and tuned using integrated features, configuration modes and accessory parts to meet just about any use condition. It's tough, ultra light and stores flat in its included stuff sack.

The Core's dual wall design is comprised of two parts; the outer wall and inner plates called afterburners. The afterburners channel fresh air up from its lower intake ports and superheat it before directing it into its exhaust. This creates a wall of superheated air that will ignite and re-burn any unburned wood gas or smoke particulates that try to escape. The afterburners also act as insulators, recirculating heat that might normally escape out the side of the unit as radiation and directs it back up towards the cooking surface. No batteries or fans required and no moving parts or sensitive electronics that can break or wear out.

Its a complex little reactor that makes cooking in the outdoors easy and fun.

Since there is no single perfect setup for every fuel type or climate condition, the Core design allows you to tune it using integrated airflow management features and accessory parts to meet almost any fuel or weather condition.  It can be run wide open to get a fire started and then closed down to make its core blazing hot, just like a full size wood stove. 

The Core was designed for realistic cooking chores and it can be configured with either 3 or 4 sides to accommodate the solo hiker to cooking for the entire family. Depending how you configure it, it will support everything from small cups up to large dutch ovens without extra small parts. 

Its also great at home as an extra burner for outdoor barbecues, grilling or for emergency cooking during power outages. Its even got an optional integrated heat shield that can be installed in the bottom so that it can be used on a picnic table without scorching it or used on the top as a griddle to keep soot off your pan! It can completely shield a fire from wind and pouring rain and every piece has a hole in it so that they can be clipped to a carabiner.

Optional parts are also available such as an integrated grill, solid fuel tab support or solid burn plates that helps build heat in the core and contain coals without the heat shield. 

The CORE is practically indestructible so it has a lifetime guarantee. If a part ever breaks under normal use conditions, I will replace the broken part for free. If you ever lose or damage a part, you don't have go out and buy a whole new unit because each part will be available online at a reasonable price. 

The Core has many modes and can be configured to meet just about any use condition so if you're interested in the granular details, read on:

This is where the CORE separates itself from any other ultralight stove.

The addition of a Top Lit Up Draft (TLUD) plate, installed above the afterburners, increases the units efficiency by initially trapping heat inside the reaction chamber by slowing down the exhaust, more thoroughly mixing it with super-heated air and then focusing the heat and flame right into the center of the cooking surface. It basically turns it into a little blast furnace.

The TLUD plate allows the unit to burn hotter and cleaner and perform smokeless, extended length, high temperature, burns that can exceed one hour per fill. It will incinerate thick and even slightly damp fuel. In this mode the Core will burn its fuel to dust and you will be amazed at how how much heat can be generated by such a small stove. 

The TLUD feature turns the CORE into a no smoke, no stoke, nature powered gas burner.

The ideal spot for the cooking surface is in the hottest part of the flame which is near the upper 1/3rd of the flame where the fuel has fully completed the combustion process and where the most heat is available. If you've ever used a non after-burning stove, you may have discovered that they usually position the cooking surface too low in the combustion process which allows unburned resins in the smoke to condense into a thick black tar on your pot. One of the best features of the TLUD plate is that it forces the completion of the combustion process earlier than other, non after-burning stoves to reduce the amount of resin deposited.

 TLUD mode is perfect for extended cooking times when cooking for friends and family or when you need a consistently hot fire but don't want to have to keep messing with it. At home the Core is a practical, and realistically sized back up burner for power outages or emergencies. Just fill it with wood pellets (or whatever fuel you can find) for a smokeless burn that can last over an hour. Much more efficient and clean than trying to cook on an open fire or barbecue.

The TLUD plate is also designed to support a Trangia or Esbit alcohol stove at the optimum distance from your cooking surface. So if you can't get your hands on any dry wood, you can always use your alcohol stove as a backup and still be able to easily and completely shield the flame from the elements. 

The Trangia, Esbit and Evernew alcohol stoves work with three sides fitting into the afterburner slots or exhaust ports, held firmly in position by spring tension.

An optional ultralight fuel tab support places the fuel tab at just the right height below the cooking surface by using a couple small strips from a soda can to cradle the tab and completely block it from the weather.

The Rocket Port is an optional module designed to increase the performance of the unit by increasing its draft length. The rocket port sucks heat and flames from fuel burning near or outside the fuel port opening that would normally escape, into the burn chamber and directs it towards the cooking surface. The port can also help keep your pot handles cool, keep rain or snow off your fuel and even dry damp fuel as its slowly fed into the unit.

The sides of the rocket port also have holes in them to accept heavy wire or stakes to create a fuel platform allowing air to draft under the fuel.

Some people like a larger stove because they're generally easier to keep a fire going in and generate more heat for group cooking chores. Others prefer to have smaller lighter weight stoves for ultralight camping or single person use. The Core was designed to meet both needs so you only need one stove. Just pack the parts you need and leave the rest at home.

Core 4 Stainless Steel:

 Core 3 Stainless Steel

You'll have to wait for titanium weights because I haven't had any of this model cut yet $$$ but titanium is 45% lighter than steel! . 

Sometimes you want to go ultralight yet not sacrifice the efficiency and reduced cooking times that a stove provides. The Core was designed so that it can be used with only its side panels and nothing else. Just assemble 3 or 4 side panels and place it over the top of a ground fire to create draft, control airflow, focus heat and provide a cooking platform. The flat bottom beams were designed to create a seal against the ground to resist ground fire creep yet allow air in at the lowest possible level.

You'll have to wait for titanium weights because I haven't had any of this model cut yet $$$ but titanium is 45% lighter than steel! . 

Biochar is composed largely of carbon made from wood and recycled agricultural products. When mixed into garden soil, biochar works much like compost, promoting fertility by retaining minerals that help plants flourish. The carbon in compost lasts for only a few years, but biochar’s carbon remains in the soil for centuries, continuing to provide those beneficial nutrients to plants. By using biochar, regular composting and adding fertilizers is no longer a necessity. (and tomatoes love this stuff)

To configure the Core as a Biochar Reactor, set it up in the same configuration as TLUD mode except the idea is to only give the fire just enough oxygen to keep it going so it just bakes the fuel but does not completely burn it. To control amount of oxygen the fire gets, close off most of the air from entering the lower air intake ports by sliding a strip of tin or other metal into the port supports.

Then fill the fuel chamber with wood pellets or sticks and start a fire on the top of the stove. It will burn down a bit and then start cooking the wood instead of burning it. Eventually the flame will go out and all the wood in the fuel chamber will be cooked completely through into a black charcoal. Just extinguish any hot spots with a little water so it doesn't smolder and the bio-char is ready to use.

To use the biochar, just integrate it into the soil around your flowers and vegetables and watch them take off.

Most twig stoves aren't easily tuned and many have limited or even only a single configuration that you slap together and hope works for you in whatever conditions you may be in at the time. The Core is different in that respect.

The Core is designed to be extremely strong but as lightweight as possible. To accomplish this the sides of the unit have an arc. 

Just as a flat piece of paper is flimsy when stood on its edge but becomes amazingly rigid and strong when a crease is added, the arc in the side panels perform in the same fashion.  Therefore the panels can be thinner and lighter while still maintaining amazing strength. Using spring hard stainless steel or titanium makes for a very weight efficient package while retaining the ability to spring flat for storage.

Its not a jack-stand but it isn't as heavy as one either. The CORE can easily support over 100 lbs so it has no problem holding up a full cast iron skillet or dutch oven. 

The base of the Core is flat which provides lots of surface area at ground level to reduce the risk of the unit sinking into the dirt sideways on you at the worst possible moment. The base has a scalloped edge to both grip rough surfaces better and to rip through grass and debris to allow a good seal against the ground to stop fire from creeping out from under it. 

An optional secondary heat shield plate can be installed into the lower air intake ports to protect surfaces from high temperatures which also helps the unit to sit on top of the snow.

The Core fits inside its storage bag which is 6x6 inches square and stows flat. Holes in each part allow them to be clipped on a carabiner. 

Its storage bag, made from tough, waterproof pack cloth, comes with every unit to help keep residual soot and ash dust out of your pack. The seams on the bag can be sealed to create a wash station or to carry water.

One of the things that bugged me the most with earlier designs was to watch all of my heat and fire blow out the side of my stove from just a small breeze with no easy method to block it. I also wanted the ability to properly control airflow exiting the top of the unit like dampers do in full size wood stoves while still allowing plenty of oxygen in the bottom to prevent oxygen starvation and smoking.

The new design incorporates unique port features that allow them to be blocked with just a couple small strips of thin metal from a tin can.

Each upper exhaust port allows a strip of lightweight metal to be securely snapped in to block the port. This allows the combustion chamber as much fresh air as it needs without stalling combustion while at the same time compounding the heat generated within the burn chamber. Ridges on the top beams facilitate continuous airflow by allowing a small amount of exhaust out even when all upper ports are blocked and a pot is on the unit.

Each lower port has a center tab to support metal strips for simmering or blocking wind.

The slot above the fuel port accepts a simple door which you can get online or just make from sheet metal or a tin can.

The Core grill locks into the ridges in the top of the stove so that it doesn't move around while you mess with your food. There are a few standard grill designs to choose from. You will be able to select the one you like most in a survey when the project ends.

Why have a grill that's just a grill? The optional SHTF grill is 6x6 inches, made from spring hardened stainless steel or titanium and has parts that you can break out in an emergency. It stays locked in place when in use and will cook your food just as good as any single purpose grill. Clean up is simple, just leave baked on food as bait! It also fits inside the Core stuff sack.

All reward pricing includes domestic shipping within the U.S.
See the international shipping section for updated shipping prices.

The Core 3 Ultralight Reward is available in stainless steel or titanium and includes:

1 - Fuel Port Plate
2 - Side Plates
1 - Triangle Burn Plate
1 - Core Stove Bag

The Core 4 Ultralight Reward is available in stainless steel and includes:
1 - Fuel Port Plate
3 - Side Plates
1 - Square Burn Plate
1 - Core Stove Bag

The Core 4 Reward is available in stainless steel or titanium and includes:
1 - Fuel Port Plate
3 - Side Plates
3 - Afterburner Plates
1 - Square Burn Plate
1 - Triangle Burn Plate
1 - TLUD Plate
1 - Core Stove Bag

The Core 4 Unlimited Reward is available in stainless steel or titanium and includes:
1 - Fuel Port Plate
3 - Side Plates
4 - Afterburner Plates (for full TLUD mode)
1 - Square Burn Plate
1 - Triangle Burn Plate
1 - TLUD Plate
1 - Heat Shield
1 - Rocket Port (4 parts)
1 - Core Grill or SHTF Grill
1 - Core Stove Bag

You will have your choice of solid burn plates or perforated burn plates which you can choose in the survey I will send out after the project is funded. If your package contains a grill you will have your choice of either the standard Core grill or the SHTF grill

CORE HEAVY

The Core Heavy has all Titanium parts and comes with:  

1 Fuel Port Plate
3 Side Plates
4 Afterburners
1 Square Burn Plate - Perforated
1 Square Burn Plate - Solid
1 Triangle Burn Plate - Perforated
1 Triangle Burn Plate - Solid
1 Heat Shield - Square
1 TLUD Plate
1 Rocket Port - Complete
1 SHTF Grill
1 Core Standard Grill
1 Solid Fuel Module
1 Door
6 Damper Plates (only Stainless Steel currently available)
1 Stove Bag

The Core stove began many, many years ago while camping with my young family in the mountains of Idaho. We were out on a hike, miles from camp, trapped by a storm that fell massive trees all around us and over the trail back to camp. We had to crawl through piles of trees to get out and didn't make it back to camp until just after dark. When we got back it got us thinking that we sure could have used a few key pieces of equipment that would have helped us out along the way.

That experience motivated me to design a stove that could be transformed to work in just about any condition. It needed to be small and light enough to fit into the day-pack of my children yet easy enough to use that they could use it. On top of that it needed to be affordable because everyone needed one and the parts had to be easily replaceable in case they were lost or broken. Its taken many hours of my spare time over the last few years to refine its design and its form has ultimately been shaped by trial and tribulation.

The Core stove started with mockups from soda boxes that I cut up at camp and progressed through various iterations cut from card stock until arriving at the current design.

I've put a TON of work into this little stove. Your support will help meet the materials minimum order which must be over 1000 lbs of metal, help with the quantity discount for bag orders and any extra will be considered a gift which will provide me with initial stock, tools and some bare necessities to help me get started. It will also allow me to add my meager funds in to purchase a few extra stoves at the bulk price along with you guys to kickstart the online store.

The CORE will be manufactured locally, made in the USA

May - Kickstarter Project
June -  Confirm materials order and shipment. Confirm stove bag order. Once the materials arrive, production will begin immediately on both bags and stoves. Manufacturing should be complete by mid June if everything goes according to plan. Packaging and shipping begins.
July - Manufacturing complete shipping to backers complete.

250 Backers - Goal Achieved!

Custom Fuel Tablet Module - $1

300 Backers - Goal Achieved!

SHTF Grill - A grill that can help you harvest the food you grill on it!

$10 - Hardened Stainless Steel
$15 - Titanium SHTF Grill

400 Backers - Goal Achieved!

Ultralight Damper Plates
Damper plates fit in the side ports to stop wind and focus heat. These will last as long as your stove and won't get soft and crusty like tin ones do after being heated red hot a couple times. 

Stainless Steel
2 for $1
4 for $2
6 for $3

Sorry, no option for thin titanium damper plates at this time.    

Door
The door is great to use with the CORE 3 configuration to channel heat/flame near the door opening back into the stove. Its also handy when you want to block the wind or top feed the stove.    

$2 - Stainless Steel  
$3 - Titanium    

Solid Burn Plates
Solid burn plates lessen the possibility of coals falling onto the ground.   

$3 Square Stainless Steel  
$7 Square Titanium 

$3 Triangular Stainless Steel
$6 Triangular Titanium

Additional Spare Parts

Stainless Spring Steel: 
Front Plate $6
Side Plate $6
Afterburners $4
Square Perforated Burn Plate $6
Triangle Perforated Burn Plate $6
TLUD Plate $4

Titanium: 
Front Plate $8
Side Plates $8
Afterburners $6
Square Perforated Burn Plate $8
Triangle Perforated Burn Plate $8
TLUD Plate $6

Stove Bag $6

450 Backers

DARK CORE
Have your CORE blackened with an electro-etch process to make it completely black!

Dark CORE Finish - $5

526 Backers

If we exceed 526 backers, which was the number of backers of the original CORE project before it was forced to shut down, everyone will receive a FREE GIFT such as a Fire Steel, LED Key-chain Light, Fresnel Lens for fire starting or other handy option which you will be able to select in the survey sent out at the end of the project.

To order stretch goal items, click on 'Manage my Pledge' up in the right hand corner of the page. Then modify the value in the 'Pledge Amount' to include the value of the items you want.

International Shipping Fees

Items will be shipped by default using United States Postal Service Priority Mail for $24 (unless you specify something else) with delivery times between 6 - 10 days.

Items *can* be shipped internationally for $12 using United States Postal Service First Class mail. There is no tracking available and delivery times may vary. 

Canadian shipments can be shipped in a Tyvek envelope via United States Postal Service First Class mail for $6.

Unfortunately $8 USPS International shipping isn't an option because the envelope must be able to be processed through a belt system and some systems must be able to bend the envelope.  

Featured On:

"So you love camping? You don’t want to go on your next trip unprepared. The Core is certainly worth a look if you need a portable stove to cook your food. "

Risks and challenges

With regards to the manufacture of the product itself, I don't foresee any issues at this time.

Sheet metal stoves have been around for many, many years. Since the original Core kickstarter project, I've taken steps to re-design the product so that it doesn't interfere with any existing claims of patent that I am aware of.

If you have any questions about the Core being a copy of another manufacturers product or idea; please do your homework first or PM me for more information.

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Support

  1. Select this reward

    Pledge $7 or more About $7

    Thank you for helping us get this project lit! Receive a rugged water resistant nylon pack-cloth CORE Stuff Sack as a token of our appreciation.

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    Pledge $30 or more About $30

    CORE 3 Ultralight - Spring Hard Stainless Steel - Three sides and a burn plate make this stove very light yet large enough to be effective. Stuff sack included!

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    Pledge $35 or more About $35

    CORE 4 Ultralight - Spring Hard Stainless Steel - Four sides and a burn plate, large internal volume, great for cooking large meals. Stuff sack included!

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    Pledge $40 or more About $40

    EARLY BIRD - CORE 4 - Spring Hard Stainless Steel - This is the main retail model that has everything you need to make a three or four sided stove. Includes Four sides, Square Burn Plate, Triple Afterburners, TLUD Plate and a Triangle Burn plate to also make a CORE 3. Stuff sack included!

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    Pledge $45 or more About $45

    CORE 4 - Spring Hard Stainless Steel - This is the main retail model that has everything you need to make a three or four sided stove. Includes Four sides, Square Burn Plate, Triple Afterburners, TLUD Plate and a Triangle Burn plate to also make a CORE 3. Stuff sack included!

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    Pledge $50 or more About $50

    TITANIUM CORE 3 - Three sides, Two Afterburners and a Burn Plate make this stove extremely light and a great stove for solo use. Stuff sack included!

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    Pledge $55 or more About $55

    EARLY BIRD - CORE 4 UNLIMITED - Spring Hard Stainless Steel - Four sides, Square Burn Plate, Square Heat Shield, Quad Afterburners, TLUD Plate, Rocket Port, SHTF or Core Grill and Triangle Burn plate to also make a CORE 3. Stuff sack included!

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    Pledge $60 or more About $60

    CORE 4 UNLIMITED - Spring Hard Stainless Steel - Four sides, Square Burn Plate, Square Heat Shield, Quad Afterburners, TLUD Plate, Rocket Port, SHTF or Core Grill and a Triangle Burn plate to also make a CORE 3! Stuff sack included.

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    Pledge $70 or more About $70

    EARLY BIRD - TITANIUM CORE 4 - This is the main titanium retail model that has everything you need to make a three or four sided stove. Includes Four sides, Square Burn Plate, Triple Afterburners, TLUD Plate and a Triangle Burn plate to also make a CORE 3. Stuff sack included!

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    Pledge $85 or more About $85

    TITANIUM CORE 4 - This is the main titanium retail model that has everything you need to make a three or four sided stove. Includes Four sides, Square Burn Plate, Triple Afterburners, TLUD Plate and a Triangle Burn plate to also make a CORE 3. Stuff sack included!

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    Pledge $100 or more About $100

    TITANIUM CORE 4 - UNLIMITED.
    YOLO. Titanium CORE 4, Burn Plate, Heat Shield, Quad Afterburners, Rocket Port, TLUD Plate, CORE 3 Burn Plate, and a Titanium SHTF or Core Grill. Stuff sack included!

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    Pledge $115 or more About $115

    TITANIUM CORE 4 - UNLIMITED.
    YOLO. Titanium CORE 4, Burn Plate, Heat Shield, Quad Afterburners, Rocket Port, TLUD Plate, CORE 3 Burn Plate, and a Titanium SHTF or Core Grill. Stuff sack included!

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    Pledge $120 or more About $120

    TITANIUM CORE HEAVY. Titanium CORE with at least 1 of every part currently available. See the CORE Heavy stretch goal for details.

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Funding period

- (30 days)