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FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set

FF Titanium Nesting Stove Set

Reviews
£59.93

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DESCRIPTION

test test test 

MAIN FEATURES

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TECHNIQUAL SPECS & MATERIALS

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INTRODUCING THE FF NESTING STOVE

After six months of development, we're proud to finally introduce the Forest Fundamentals Nesting Stoves.

From the outset, we had two main objectives: to optimise the stove for multiple fuel types and to create a functional, space-saving nesting system.

Designing a multi-fuel stove was extremely important, as it would allow the stove to adapt to different terrains, trip lengths, and climates, and—most importantly—your preferred fuel types.

The stove accommodates wood, solid fuel (esbit tabs, or hexamine tablets), and alcohol burners.

For all fuel types, countless design changes were made, focusing on two key testing parameters: fuel efficiency and reducing boil times.

At Forest Fundamentals, we spend a lot of time outdoors and understand the importance of efficient, organised gear systems. Our goal for the nesting system was to provide enough storage space to store all cooking, fire, and water gear.

With everything fitting neatly inside the stove and it’s carrying bag, the whole system remains compact, accessible, and easily fits inside your pack or side pouch.

USING THE STOVES WITH WOOD FUEL

The air vent hole placement is designed to optimise the air-to-fuel ratio, ensuring efficient combustion, steady heat output, and controlled wood burning.

The size of the feeding port has been maximised for easy refuelling while limiting excess airflow. Wood can also be fed in from the top when pots or cups are not in use.

To prevent scorching the ground, the stove has an elevated ash pan plate that traps embers. The gaps between the stove legs allow for easy ash removal, preventing buildup during burning.

If it starts raining and you need to reposition the stove under a tarp or onto a rock for maximum heat output while cooking, you can do so while it's burning by sliding two tent pegs through the slots and using them as handles.

USING THE STOVES WITH ALCOHOL BURNERS & SOLID FUEL

When using alcohol burners or fuel tabs, the cup or bottle height can be lowered to maintain the optimal distance from the flame source to ensure faster boil times.

Alcohol burners, or fuel tabs are positioned at the base of the stove, where reduced airflow acts as a windshield, improving fuel efficiency.

The stove includes a titanium basin for solid fuel tabs. The basin contains any mess after melting and prevents the tabs from sliding around, localising the flame and reducing burn times.

Both fuel types ignite easily with a ferro rod, either from the top or through the main feeding port.

The stove's base stores multiple fuel tabs and an FF alcohol burner tin, secured by the removable ash pan plate. The stove's base doesn't fit all alcohol burners—please check the dimensions for reference.

THE SPACE-SAVING NESTING SYSTEM

The nesting system saves space by storing essentials like water bottles and cups inside the stove. While bulkier than flat-packed stoves alone, it takes up less space when combined with gear you already carry.

The stove nests with a standard 750ml cup and 32oz wide-mouth bottle—an already popular nesting combination it ensures compatibility with peoples existing gear.

We also believe the 750ml size offers the most flexibility outdoors. It provides a practical boiling capacity, requiring only 2-4 boils for a full day’s water supply for one person.

The 750ml size is also large enough for cooking and eating, removing the need to carry a separate eating tray.

The stove's base offers further storage for small items like ferro rods, fire tabs, or an FF alcohol burner tin, secured by the removable ash pan plate.

The upgraded stove bag also provides extra storage for essentials like LifeStraws, Millbank bags, and cotton rags, ensuring all fire, cook, and water gear fits in one system.

Unlike flat-packed stoves, it won’t bend or warp with use, and there’s no struggle to slot stiff parts together in the cold!

If you need two cups—one for coffee and one for food—a 300ml cup fits perfectly on top of the bottle, with the 750ml cup nesting below.

DESIGNED FOR COMPATIBILITY WITH YOUR EXISTING GEAR

In the design of the stove, we have tried to accommodate peoples’ gear as much as possible. The stove works with popular alcohol burners including he Trangia, and common Titanium models.

The 750ml cup nests perfectly with various bottle designs, including 32oz wide-mouth bottles like Nalgene (stainless steel & plastic), Pathfinder wide-mouth bottles, and the Stanley Adventure series. It also fits Grayl filter bottles, though adding a bandana around the base is advised to prevent rattling.

Various cups/pots will also nest perfectly inside the 750ml size such as the TOAKS 375ml and 450ml Cup, or the TOAKS Titanium 370ml Double Wall Cup.

For nesting inquiries, send us your gear's dimensions, and we'll check compatibility. Detailed dimensions are also available at the bottom of the page.

MAIN FEATURES

• Optimised air-to-fuel ratio, ensuring efficient combustion, steady heat output, and controlled wood burning.

• Feed wood easily through the side port or top opening.

• Removable Titanium ash pan to prevent ground scorching.

• The stove can be moved around while burning using tent pegs as handles.

• Adjustable bottle and cup heights for use with solid fuel and alcohol burners.

• Stove helps shelter solid fuel and alcohol stove from wind.

• Includes a Titanium basin to use with solid fuel to contain residue.

• Extra storage space at the base of the stove for fire essentials, and alcohol burners.

• Saves space inside your pack by nesting with cups and bottles.

• Designed to nest with 750ml cups, and 32oz wide-mouth bottles.

• The 750ml requires only 2-4 boils for a full day’s water supply for one person.

• No warping, no bending, no struggling with stiff parts in the cold.

• Designed to be compatible with existing gear—check dimensions or contact us.

• Made from Grade 2 Titanium—ultra-light, durable, and resistance to heat.

TECHNICAL SPECS AND MATERIALS

• Made from Grade 2 Titanium, the stoves will withstand extreme temperatures, boast high tensile strength to protect against impact-driven damage, and maintain exceptional corrosion resistance.

• True to titanium’s nature, these stoves are ultralight at just 10 grams (excluding any add-ons).

• The stove’s cylindrical design—compared to flat-packed folding stoves—also eliminates warping and accidental bending while ensuring structural remains solid.

• Precision laser-cut from Grade 2 Titanium to ensure no tolerance issues with moving parts.

• Each unit is assembled and inspected for defects before shipping.

WHAT'S INCLUDED WITH THE STOVE?

• 1x Grade 2 Titanium Nesting Stove
• 1x Grade 2 Titanium Solid Fuel Basin
• 2x Grade 2 Titanium Cross Supports
• 1x Grade 2 Titanium Ash Pan Plate
• 1x Cotton Canvas Drawstring Carrying Bag
• 1x Cotton Anti-Rattling Bandanna
• 1x Instruction Cards

Please note: Some items shown in the photos—such as the griddle plate, 1000D Cordura stove bag, and fire mats—are not included with the standard stove set. These accessories are available to purchase separately. Any components purchased with the stove get 15% off.

Product Gallery

FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set
FF Titanium Nesting Stove Set

FF STOVE ADD-ONS

Check Out The Reviews

Complete Titanium Nesting Stove System by Forest Fundamentals: Full Cook, Fire & Water Kits

Designed to Accommodate Multiple Fuel Types:

Wood Burn Efficiency and Fuel Management

One of the key challenges was balancing ventilation and airflow. Too few air holes cause poor combustion, while too many lead to rapid fuel consumption and flame instability.

The vent hole placement is designed to optimise the air-to-fuel ratio, ensuring efficient combustion, steady heat output, and controlled wood burning.

The main feeding port size is maximised for easy refuelling while limiting excess airflow. Wood can also be fed in from the top when pots or cups are not in use.

To minimise damage to the ground, the stove includes an elevated ash pan to contain embers and prevent ground scorching. The feeding port is also slightly raised to prevent burning wood from spilling out onto the ground.

Wood burn efficiency and fuel management

Optimised for Fuel Tabs & Alcohol Burners

All design features for burners and fuel tabs focus on enhancing fuel efficiency and reducing boil times.

When using alcohol burners or fuel tabs, the cup or bottle height can be lowered to maintain the optimal distance away from the flame source.

For larger pots that don't fit inside the stove, the flame holes around the top edge help direct the flames around the sides of the pot, which we've found shortens boil times.

The stove includes a titanium solid fuel tray, perfectly sized for fuel tabs. It contains any mess after melting and prevents the tabs from sliding around, localising the flame and reducing burn times.

The base of the stove provides storage for spare fuel tabs or an FF alcohol burner tin, securely held in place by the removable ash pan plate.

Optimised for alcohol burners

Optimised for Fuel Tabs & Alcohol Burners

All design features for burners and fuel tabs focus on enhancing fuel efficiency and reducing boil times.

When using alcohol burners or fuel tabs, the cup or bottle height can be lowered to maintain the optimal distance away from the flame source.

For larger pots that don't fit inside the stove, the flame holes around the top edge help direct the flames around the sides of the pot, which we've found shortens boil times.

The stove includes a titanium solid fuel tray, perfectly sized for fuel tabs. It contains any mess after melting and prevents the tabs from sliding around, localising the flame and reducing burn times.

The base of the stove provides storage for spare fuel tabs or an FF alcohol burner tin, securely held in place by the removable ash pan plate.

Optimised for solid fuel tabs
Ensuring Efficient Combustion

One of the key challenges was balancing ventilation and airflow. Too few air holes cause poor combustion, while too many lead to rapid fuel consumption and flame instability.

The vent hole placement is designed to optimise the air-to-fuel ratio, ensuring efficient combustion, steady heat output, and controlled wood burning.

Designed for Easy Refuelling

The main feeding port size is maximised for easy refuelling while limiting excess airflow. Wood can also be fed in from the top when pots or cups are not in use.

Leave No Trace & Fire Safety

To minimise damage to the ground, the stove includes an elevated ash pan to contain embers and prevent ground scorching. The feeding port is also slightly raised to prevent burning wood from spilling out onto the ground.

Fuel Efficiency & Reducing Boil Times

All design features for burners and fuel tabs focus on enhancing fuel efficiency and reducing boil times.

When using alcohol burners or fuel tabs, the cup or bottle height can be lowered to maintain the optimal distance away from the flame source.

Optimised for Larger Pots

For larger pots that don't fit inside the stove, the flame holes around the top edge help direct the flames around the sides of the pot, which we've found shortens boil times.

Contains Solid Fuel Residue

The stove includes a titanium solid fuel tray, perfectly sized for fuel tabs. It contains any mess after melting and prevents the tabs from sliding around, localising the flame and reducing burn times.

Stores Alcohol Burner & Fuel Tabs

The base of the stove provides storage for spare fuel tabs or an FF alcohol burner tin, securely held in place by the removable ash pan plate.

Fuel Efficiency & Reducing Boil Times

All design features for burners and fuel tabs focus on enhancing fuel efficiency and reducing boil times.

When using alcohol burners or fuel tabs, the cup or bottle height can be lowered to maintain the optimal distance away from the flame source.

Optimised for Larger Pots

For larger pots that don't fit inside the stove, the flame holes around the top edge help direct the flames around the sides of the pot, which we've found shortens boil times.

Contains Solid Fuel Residue

The stove includes a titanium solid fuel tray, perfectly sized for fuel tabs. It contains any mess after melting and prevents the tabs from sliding around, localising the flame and reducing burn times.

Stores Alcohol Burner & Fuel Tabs

The base of the stove provides storage for spare fuel tabs or an FF alcohol burner tin, securely held in place by the removable ash pan plate.

ADVANTAGES OF THE NESTING SYSTEM & STOVE CONSTRUCTION DETAILS

The Nesting System: Space Maximised

The stove's nesting system saves space by holding essential gear, such as water bottles and cups, inside the stove.

For the nesting system to work, it was crucial that the stove integrated with products that offered the most flexibility outdoors.

We chose the standard 750 ml cup size to pair with the stove.

This size is popular for stacking with 32oz wide-mouth bottles, ensuring compatibility with people's existing gear and eliminating the need for additional purchases.

We also believe the 750 ml size offers the most flexibility. It provides a practical boiling capacity, requiring only 2–4 boils for a full day's water supply for one person.

The 750 ml size is also large enough for cooking and eating, removing the need for separate eating trays.

The Nesting System: Space Maximised

Titanium Tough & Featherlight Design

Laser cut, rolled, then welded from Grade 2 Titanium, the stoves will withstand extreme temperatures, boast high tensile strength to protect against impact-driven damage, and maintain exceptional corrosion resistance.

True to titanium's nature, these stoves are ultralight at just 10 grams (excluding any add-ons).

The stove's cylindrical design—compared to flat-packed folding stoves—also eliminates warping and accidental bending while ensuring structural integrity.

No more fumbling with parts in freezing cold; it's ready to use immediately.

Titanium Tough & Featherlight Design

Extra Storage Space & Creating Efficient Fire & Cook Systems

The bottom of the stove also offers extra storage space. Gear is secured into place by the removable ash pan plate.

It's designed to hold all stove add-ons, like the grill plate and solid fuel plate, as well as other fire and cooking essentials such as alcohol burners, tinder, scouring pads, and water purification tablets, and more.

The nesting system and the space beneath the stove are designed to hold all essential cooking and fire gear internally, eliminating the need to carry any fire or cooking gear outside the stove.

Small Cordura pouches are also available, designed to fit neatly inside the stove's base, keeping all these essentials organised and secure.

Extra Storage Space & Creating Efficient Fire & Cook Systems
How Does the Nesting System Maximise Space?

The stove's nesting system saves space by holding essential gear, such as water bottles and cups, inside the stove.

For the nesting system to work, it was crucial that the stove integrated with products that offered the most flexibility outdoors.

Why Did We Choose a 750ml Cup to Pair with the Stove?

We chose the standard 750 ml cup size to pair with the stove.

This size is popular for stacking with 32oz wide-mouth bottles, ensuring compatibility with people's existing gear and eliminating the need for additional purchases.

We also believe the 750ml size offers the most flexibility. It provides a practical boiling capacity, requiring only 2–4 boils for a full day's water supply for one person.

The 750ml size is also large enough for cooking and eating, removing the need for separate eating trays.

The Benefits of Titanium

Laser cut, rolled, then welded from Grade 2 Titanium, the stoves will withstand extreme temperatures, boast high tensile strength to protect against impact-driven damage, and maintain exceptional corrosion resistance.

True to titanium's nature, these stoves are ultralight at just 10 grams (excluding any add-ons).

No Assembly, Warping, or Bending of Parts

The stove's cylindrical design—compared to flat-packed folding stoves—also eliminates warping and accidental bending while ensuring structural integrity.

No more fumbling with parts in freezing cold; it's ready to use immediately.

Extra Storage Space Inside the Stove

The bottom of the stove also offers extra storage space. Gear is secured into place by the removable ash pan plate.

It's designed to hold all stove add-ons, like the grill plate and solid fuel plate, as well as other fire and cooking essentials such as alcohol burners, tinder, scouring pads, and water purification tablets, and more.

Eliminates the Need to Carry Anything Outside the Nesting System

The nesting system and the space beneath the stove are designed to hold all essential cooking and fire gear internally, eliminating the need to carry any fire or cooking gear outside the stove.

Small Cordura pouches are also available, designed to fit neatly inside the stove's base, keeping all these essentials organised and secure.

Watch: The Nesting Stoves in Action

Cooking with the Nesting System

Cooking with the Nesting System

Watch on YouTube

Using Alcohol Burners with the Nesting Stoves

Using Alcohol Burners with the Nesting Stoves

Watch on YouTube

Using the Stove with Esbit Tabs / Solid Fuel Short

Using the Stove with Esbit Tabs / Solid Fuel

Watch on YouTube

Built to Endure Short

Built to Endure

Watch on YouTube

Packing Away the Nesting System Short

Packing Away the Nesting System

Watch on YouTube

Stove Measurements

Nesting Cups, Bottles, and Pots

The stove is intended to nest with standard size 750 ml cups with the cross supports slotted down the sides of the stove.

For additional details on why we chose the 750 ml cup size, please refer to the information provided above.

The majority of 750 ml cups from brands including Snow Peak, Toaks, MSR, and Vargo are all standard sizes.

The stove will also accommodate 750 ml size cups with bail handles.

The diameter of standard size 750 ml cups is approximately 95 mm (3.74").

When nesting the 750 ml cup size with the stove, a 4–5 mm gap is maintained between the stove's edge and the cup walls to allow for slight variations in cup dimensions.

The 750 ml size will also nest perfectly with various 32 oz bottles—including the Nalgenes, Pathfinder wide-mouth bottles, the Stanley Adventure Series, and the Grayl bottles.

That said, any bottle, cup, or pot smaller than the stove's diameter works, and minor rattling can be fixed by stuffing gear around it or wrapping a bandanna.

Stove dimensions for nesting cups, bottles, and pots

Extra Storage in Stove Base

The stove's base is the perfect place to store small essentials like a fire kit and an alcohol burner.

This compartment also nests the solid fuel basin and the griddle plate.

The removable ash-pan plate keeps everything securely in place.

The available space at the base of the stove varies depending on whether you pack the griddle plate or solid fuel basin.

Height of the solid fuel basin: 4 mm (0.15")

Height of the griddle plates: 1 mm (0.04")

Please note: Not all alcohol tins fit in this space. The Trangia and common titanium sizes will not fit. The Forest Fundamentals alcohol tin is guaranteed to fit. Small gear can also be stored inside our burners.

To prevent gear from getting ashy, we also offer Cordura pouches for this space. These are available separately.

Extra storage in stove base

General Stove Dimensions

The stove and the add-on Cordura carrying bags are designed to nest and provide storage for all the cooking, fire, and water gear needed for one person.

Since this gear is frequently used on the trails—often several times in one day—we made sure the system remains compact enough to fit into rucksack side pouches or be easily strapped to the exterior of your pack, rather than taking up space in the main compartment.

This helps keep your gear readily accessible without the need to rummage through your pack.

However, we intentionally avoided making the stove too compact.

It remains a fully functional wood stove that accommodates wood of various sizes, delivers ample heat, and provides a stable platform for cooking and boiling large quantities of water.

General stove dimensions
General Nesting Dimensions Overview 1.

The stove is intended to nest with standard size 750 ml cups with the cross supports slotted down the sides of the stove.

For additional details on why we chose the 750 ml cup size, please refer to the information provided above.

The majority of 750 ml cups from brands including Snow Peak, Toaks, MSR, and Vargo are all standard sizes.

The stove will also accommodate 750 ml size cups with bail handles.

The diameter of standard size 750 ml cups is approximately 95 mm (3.74").

General Nesting Dimensions Overview 2.

When nesting the 750 ml cup size with the stove, a 4–5 mm gap is maintained between the stove's edge and the cup walls to allow for slight variations in cup dimensions.

The 750 ml size will also nest perfectly with various 32 oz bottles—including the Nalgenes, Pathfinder wide-mouth bottles, the Stanley Adventure Series, and the Grayl bottles.

That said, any bottle, cup, or pot smaller than the stove's diameter works, and minor rattling can be fixed by stuffing gear around it or wrapping a bandanna.

Uses for the Space and General Information

The stove's base is the perfect place to store small essentials like a fire kit and an alcohol burner.

This compartment also nests the solid fuel basin and the griddle plate.

The removable ash-pan plate keeps everything securely in place.

The available space at the base of the stove varies depending on whether you pack the griddle plate or solid fuel basin.

Height of the solid fuel basin: 4 mm (0.15")

Height of the griddle plates: 1 mm (0.04")

Alcohol Burner Storage Information

Please note: Not all alcohol tins fit in this space. The Trangia and common titanium sizes will not fit. The Forest Fundamentals alcohol tin is guaranteed to fit. Small gear can also be stored inside our burners.

To prevent gear from getting ashy, we also offer Cordura pouches for this space. These are available separately.

Other Detailed Dimensions of the Storage Space

108 mm (Diameter) × 31 mm (Height) – When not storing solid fuel basin or griddle plate.

108 mm (Diameter) × 30 mm (Height) – When storing the griddle plate only.

108 mm (Diameter) × 26 mm (Height) – When storing both the solid fuel basin and griddle plate.

108 mm (Diameter) × 27 mm (Height) – When storing solid fuel plate only.

Compact Dimensions for Easy Storage

The stove and the add-on Cordura carrying bags are designed to nest and provide storage for all the cooking, fire, and water gear needed for one person.

Since this gear is frequently used on the trails—often several times in one day—we made sure the system remains compact enough to fit into rucksack side pouches or be easily strapped to the exterior of your pack, rather than taking up space in the main compartment.

Keeping all Fire, Water, Cooking Gear Accessible

This helps keep your gear readily accessible without the need to rummage through your pack.

Minimum Dimensions to Create a Functional Wood Stove

However, we intentionally avoided making the stove too compact.

It remains a fully functional wood stove that accommodates wood of various sizes, delivers ample heat, and provides a stable platform for cooking and boiling large quantities of water.

Fullscreen view

The Design Process: A Quick Look at Some of the Early Prototypes.

Prototype 1: The first sheet metal prototype:

Getting the first sheet metal prototypes into production.

After months of planning and refining the design on the computer, we finally had the first metal prototype in our hands.

At this stage, we didn't have any connections with metal fabricators, so it took a lot of calls and emails to track down two factories in Sheffield willing to produce our prototypes. It's not easy to find suppliers who will take on this kind of work—many only produce prototypes as pre-production samples after you've placed an order.

Huge thanks again to Parkway Steel Fabrications and CFS Fabrications for helping us get off the ground.

After taking the first sample out into the woods, it quickly became clear—this wasn't going to be a quick or easy project!

The rotating shell/windshield around the stove

At first, we had the idea for an external rotating shell around the stove—something that could be adjusted to line up different air holes, acting as both a windscreen and a way to fine-tune airflow.

This rotating shell worked well as a windscreen for alcohol stoves, but it came with some major downsides. It added too much weight and became completely impractical once the stove got too hot to handle!

We made plenty of other changes after testing this first sample. One issue we noticed was that as the wood burned, loose sticks would often fall out of the main feeding port. To fix this, we raised the port slightly to stop this from happening.

Stability & the importance of having an ash pan

Originally, we were set on four legs for aesthetic reasons, but in the woods, it proved to be too unstable. Switching to three legs made a huge difference, providing a much steadier base on uneven ground.

Since this was a nesting stove, we didn't want any flat-packed components. It felt pointless to have a nesting design if people still had to store everything inside it—at that point, you might as well just carry a folding stove!

That's why the original prototype didn't include an ash pan. But after testing, we realised it was a necessary addition—we just had to find a way to incorporate it so it could still be transported inside the stove.

Changing the design to provide better wind protection

Another issue with the design was the top cross beams (cup supports)—the metal pieces that slot into the top of the stove.

These sat too high, allowing flames to sweep underneath the pot, which led to longer boil times.

It was clear we needed to find a way for cups—whether using solid fuel, wood, or alcohol burners—to sit slightly inside the stove for better wind protection and improved efficiency.

Prototype 2: 1mm sheet mild steel

3D-Printing, and looking back on the design process

After the first sample, it took a few months and several 3D-printed prototypes before we were ready for production of the next prototypes.

Looking back, getting more sheet metal prototypes made would have sped up the design process, but with the high cost of producing one-off samples, that wasn't always an option.

This next sample was a big step forward—it finally felt like we were on the right track to creating something that truly worked as intended!

Accommodating solid fuel / esbit tablets

One of the biggest takeaways from this sample was adapting the design to accommodate solid fuel. When I'm in the woods, I prefer using wood, and when hiking, I usually rely on gas or alcohol burners. I hadn't actually used solid fuel before and didn't realise just how messy it was!

A tray was needed to contain the residue and keep the solid fuel from sliding around when lit, as this had a big impact on boil times. In the end, I settled on a small tray with a slight indent for the fuel tabs—this kept the residue contained and helped focus the flame for better efficiency.

Changing the cup size to 750ml, instead of 420ml

This sample was originally designed to fit a 420ml cup, but after taking it to Instagram, it became clear that people felt the 750ml size was far more practical. The increased boiling capacity was a big advantage, and the larger size made it easier to eat straight from the cup.

This made perfect sense since most 32oz wide-mouth bottles nest perfectly with the standard 750ml cup. So, I decided to make the switch and scale up the stove's size to match.

Stability issues & storing all of the components

Another challenge with this sample was finding a practical way to store the tent pegs, cross beams, and solid fuel plate. Placing the solid fuel plate at the base of the stove left little room for the other essentials.

To solve this, I increased the storage space at the bottom of the stove and widened the stove slightly so the cross beams could slot neatly around the edge of the cup for easier transport.

Compared to the previous sample, the three-legged design was a big improvement in stability. However, the legs still needed to be taller—any slight unevenness in the ground would cause the stove to tilt.

Prototype 3: The first Titanium Prototype

Tolerance issues after using titanium for the first time

The first titanium sample was finished! A few tweaks were still needed, but it finally felt like we were getting closer to the final outcome.

Compared to stainless steel, the titanium sheet introduced a few tolerance issues—the bottom plate didn't slot in properly, and the cross beams were slightly off. These all needed to be fine-tuned for the next round of prototypes.

Ash plate issues, & alcohol burners

The ash pan in this prototype worked well, but after an hour of burning, the ground was still left scorched. To fix this, we needed to raise the height of the ash tray slightly to provide better heat protection.

The Forest Fundamentals Alcohol Burner worked great, but we realised the spacing between the cross supports wasn't wide enough to accommodate the Trangia and another titanium model we were testing. It was important to us that people could use their existing gear without having to buy something new, so we decided to make further adjustments to accommodate these burners.

Accommodating cups with bail handles

When using alcohol burners, the video shows the cups in the lowered position—this ensured they were at the optimal distance from the burner. However, during testing, I found that cups without bail handles were tricky to remove since their side handles had to be folded inward to fit inside the stove.

To fix this, we added handle cutouts, allowing the handles to stay extended for easy removal after boiling.

Strengthening the design due to bending after use

After extensive testing, we noticed one of the legs starting to bend under heavy use. This was a problem—not only did it affect stability, but it also made it harder to slot the ash pan into place.

For the next prototypes, we significantly widened the legs to add strength and durability.

Building A Custom Stove System

Alongside the stove, we've also designed a range of compatible components — including bottles, cups, and alcohol burners — all designed to integrate with the nesting system. When purchased alongside the stove, these accessories are available with 15% off.

Frequently Asked Questions

Do I need to buy new gear to nest with the stove?

We've designed the stove to be as versatile as possible, accommodating a wide range of cups and bottles.

Ultimately, it comes down to your preferred gear and whether it fits within the stove's dimensions.

The stoves are designed to nest with standard 750ml cups, including those with bail handles.

Most 750ml cups are standard sizes. Cups from brands like TOAKS, Snow Peak, and MSR will fit within the stove system.

Cups smaller than 750ml will generally fit, though they may leave extra space around the edges.

The extra space is great for storing small essentials like sporks or ferro rods, though some rattling may occur. Wrapping a bandana around the cup will fix any rattling issues.

Most 32oz bottles, including Nalgenes, Pathfinder Bottles, and the Stanley Adventure Series, are designed to nest perfectly with a standard 750ml cup. Grayl bottles also nest well, though there is a bit of extra space around the edges.

Please see the diagram above for the exact measurements.

Will the stove fit my existing alcohol burners?

Most likely, yes — the stoves are designed to accommodate Trangia alcohol burners and other common sizes of alcohol stoves. If you're unsure whether your burner will fit the stove, feel free to reach out and we'll be happy to check the dimensions for you. The stove also comes with detailed instructions on how to accommodate burners of different sizes.

Most alcohol burners will work inside the stove; however, Trangia and other common titanium models won't fit inside the storage compartment at the base. Only Forest Fundamentals Alcohol Tins are specifically designed to fit this space.

Non-FF alcohol burners can still be stored inside the 750ml cup for transport, ensuring they remain part of your nesting system without the need for separate storage.

What fuel types is the stove designed to accommodate?

The stove is specifically designed to accommodate wood fuel, solid fuel tabs (such as hexamine, Esbit, and similar alternatives), and open-flame methylated spirit stoves.

All necessary components for using these fuel types are included as standard, with no additional add-ons required.

The stove includes a solid fuel tray for burning solid fuel tabs and cross beams for supporting alcohol burners.

The stoves can also accept small gas burners — full instructions are included on how to do this.

Does the stove come with a wind shield, and is one necessary?

To keep costs down, a windshield is not included as part of the stove. However, we are currently designing FF windshields, which we hope to make available in the coming months.

In most cases, a windshield isn't needed when using wood, solid fuel, or alcohol burners, as the stove is designed to offer ample wind protection for these fuel types.

Top Tip: In windy conditions, a simple and cost-effective way to enhance wind protection for alcohol burners and solid fuel tabs is to line the inside of the stove with tin foil. When not in use, the tin foil can be neatly wrapped and stored around the edges of the stove.

Does the stove come with a carrying bag?

Yes, the stove includes a cotton drawstring bag as standard. This bag is designed to be spacious enough to accommodate the entire nesting system, including bottles and cups, which is why it is extra long.

There are also options to upgrade to our Cordura carrying bag. This bag is intended to provide extra storage space for any fire, cook, or water gear that doesn't fit inside the nesting system.

It's perfect for storing small essentials like sporks, cooking utensils, a Millbank bag, and a Lifestraw, to name a few examples.

Does the stove come with a warranty, and what does it cover?

The stoves are covered with a 10-year warranty that guarantees protection against defects in workmanship and materials. If you encounter any issues with the stoves, feel free to reach out to us — we're happy to help.

Please note that the warranty does not cover damage resulting from misuse, neglect, or improper handling.

For more info, please click here.

Can the stove accommodate different pot sizes?

The stove is designed for pots of different sizes. For pots that are narrower than the stove's diameter, tent pegs or cross beams can be used to create stable support at different heights, depending on the fuel type being used.

For pots larger than the stove's diameter, they can rest directly on top of the stove, with the cross beams providing additional stability if needed. The three-leg design ensures a secure and balanced setup, even when using heavier or oversized cookware.

Does the stove have features to reduce environmental impact?

Creating a fire-safe stove and adhering to the 'leave no trace' philosophy was a top priority in the design process.

We've incorporated an ash pan to capture all embers and ash produced by the stove. The ash pan is slightly elevated to prevent heat damage to the ground.

The main feeding port of the stove is intentionally slightly raised. During testing, we found that a lower opening allowed burning wood to spill out, increasing the risk of fire outside the stove.

As a multi-fuel stove, it provides versatility to comply with different fire regulations and restrictions.

Depending on the environment, you can adapt the fuel source to accommodate bans on open fires or alcohol stoves.

What materials are used and where are the stoves made?

Currently, production of the stoves takes place overseas due to high minimum order quantities in the UK.

However, all assembly is completed in the UK. The Sheffield-based metal fabricators require a minimum starting order of 1,000 units.

Once we reach this production scale, we fully intend to move manufacturing to the United Kingdom.

What is the delivery time on the stoves?

We ship all orders within 1–2 days.

Delivery times:
UK: 2–4 days
EU: 3–6 days
USA: 4–7 days

If delays occur, we'll notify you promptly. All international orders include door-to-door tracking.

Please click here for more info on shipping.

Did we miss something?
If you have any questions, don't hesitate to email us at salessupport@forestfundamentals.com, or visit our Contact Us page.
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