Bushcraft - Bushbox Ultralight Outdoor Stove

Ultralight yet a fully functional multi-fuel stove. In its lightest configuration, only 61 grams; 70 grams with the base plate. Packed size 12x9 cm, only 1.5 MILLIMETERS thick when folded.

Manufactured in Germany from 0.3mm stainless spring steel. Multi-fuel: The stove can be operated with solid fuels (wood, etc. - for this we recommend the optionally available ash tray), with a Trangia burner, Esbit, fuel paste, or as a windscreen for a gas stove. Suitable for almost all pot sizes thanks to the included pot support. Extremely variable and versatile. Three different positions for the base plate/optional ash tray.

Scope of delivery: 3 side panels, pot support, base plate, cotton bag

Optionally available:
- Ash tray
- Additional pot support as a lighter base plate when using a Trangia
- Grill plate (additional base plate)
- Outdoor bag

THE PRODUCTS SHOWN IN THE PICTURES ARE FOR ILLUSTRATION PURPOSES ONLY AND ARE NOT PART OF THE OFFER.

YOU CAN FIND A BUYING AND SELECTION GUIDE FOR OUR BUSHCRAFT PRODUCTS WITH THE IMAGES.

Notes on Hobo Stove Firing

Soot/Smoke: Soot formation always means: lack of oxygen and combustion temperatures that are too low. When fired correctly, no significant soot can form in a Bushbox XL or a Bushbox LF. Soot and smoke are always signs of improper firing.

Chimney effect: The basic principle of a hobo stove is the chimney effect; our stoves are also built so that the Coanda effect can be utilized more effectively. Both physical effects require that air supply is ensured so that an air current is created which supplies oxygen, whereby on the one hand very high temperatures are reached (up to 800 degrees) and at the same time (and this is the most important point) the heat is carried upwards by the airflow and reaches the pot almost completely, instead of radiating out the sides.

Optimal operation: A hobo stove is operated optimally when there is comparatively little fuel in the combustion chamber. The wood then burns very hot, the heat is only partially transferred to the outer walls, smoke and soot cannot form (if soot does form, it burns off without residue), and there is almost no warping because there is no localized heating of the side walls. If the hobo has been fired optimally, there will also be almost no residue or ash, only a tiny pile of very light, almost white ash.

One should also be careful to avoid "yo-yo heating" (constantly changing temperatures) and extreme temperature differences (quenching in cold water).

In very many of the videos circulating on the internet, however, the boxes are stuffed to the brim, and sometimes one can see flames several meters high shooting out of the hobo. But this leads to the following problems: The chimney effect is severely restricted, the combustion temperature falls to around 200-300 degrees, and smoke and soot are produced. Burning material touches the side walls in many places, which leads to strongly uneven heating of the side walls and at the same time to the transfer of a lot of energy to the side walls. Heat islands or a strong temperature gradient between the top and bottom occur, allowing another physical effect to develop optimally, namely warping.

Improper use: Many misunderstandings also arise because some of our customers use the stoves as mobile campfires and expose them to hours of "yo-yo heating" and occasional overheating. While our stoves must prove that they can withstand such treatment and still be foldable or remain fully functional afterwards, no normal steel can survive this permanently without damage (any more than it can withstand quenching in cold water).

Warping: Warping is a physical phenomenon that is unavoidable when metal is heated unevenly (and therefore expands unevenly). Slight warping is therefore inevitable and normal. However, all our hobo stoves are designed in such a way that warping only occurs to a very moderate extent when used as intended, and the function of the hobo stove is in no way impaired.