I like fire, almost as much as I like blades and lights.. but I do not like being on fire. Which is why I like fireplaces and stoves. Whilst it is easy enough to dig a hole or set up a ring of rocks, sometimes a purpose built tool suits the purpose even better. there are times when the full-blown BBQ is overkill, especially if I hiking and camping.
Systems like the Fire- Box are purpose built and designed expressly to suit this need but as it turns out it is possible to quite easily make your own. I decided to make my own using an IKEA Ordning cutlery rack I had seen on line. The Ordning rack is a 12cm diameter, 18cm tall stainless steel cylinder 180g with an inwardly rolled lip. The sides are perforated by six sets of 1 cm holes in a 3 x 6 grid. The base also has holes. These holes arced these holes act as the vents for the fire. In order to improve air flow, I decided to put feet on mine, so I fitted it with quarter inch hex bolts I have fixed with a nut and a washer at the four corners and in the center for stability.
I then used a Dremel with a cutting wheel to cut a door into the side, using the holes as a guide. I cut a 3 x 4 hole hole and folded it inwards from the bottom. This hole became the feed hole, to feed the fire whilst a pot or pan was on top of the fire. Folding the lip inwards provides a platform for the fuel and stability when feeding larger fuel items. I also cut 8 notches in the lip of the cylinder in three pairs in one direction and one set perpendicular to those. These notches are for steel support wires I cut to size to act as a grill and pot support. I used welding rod for these wires as I had plenty.
Lighting the fire was a simple matter of filling the stove with tinder and woodchips and lighting it which I did both through the feed hole and also through the air holes. With just twigs and woodwork off-cuts, I got a nice little fire very quickly and noticed the feet kept the fire off the wet ground which helped it burn. Once it got burning I noticed the smoke coming out of the holes was igniting giving a more complete burn and rendering it almost smokeless. I suspect the metal walls were igniting the flammable wood gas. This increased the efficiency of the stove and reduced tell-tale smoke trail effects.
Putting the grill wires on a provided a stable platform on which to boil water for tea in my enamel mug, but a billy or pot or kettle could have fit just as well. The stove put off some nice radiant heat from just sticks and off cuts, burned very clean and down to basically ash. Once it burnt down I flipped the grill wires off and upended the stove to knock the last of ashes out. Popping the wires in the stove it was cool enough to pick up and pack in minutes.
Its a very lightweight system and requires attention to feed it as it only has a small fuel capacity but it was really easy to use and make. I will think about some kind of cloth bag to put it in to keep the soot off things and keep the wires in place. I look forward to experimenting with cooking on it and seeing how little fuel I can get away with to make a whole meal.
One of the things I like about this design was the lack of sparks. Even with a quite a strong cross breeze, the stove let few to no sparks escape, the network of holes leading to quite complete combustion as previously noted which in turn reduces fire-risk. I like this because it means reduced risk of fire spreading and less effort being required in setting up fire -breaks, reducing environmental impacts and set up time. Feeding a tent peg through the holes in the base could lend additional stability and with its feet, the stove could be set in a depression or hole to further reduce its impact and also exposure without smothering the fire.
