This page follows the firecraft chapter in FM 21-76, the U.S. Army survival manual. It is public domain. We are not reprinting the manual. We are teaching the same order: site, materials, a lay that will light, then flame.
A closed room in a house is a different job. That is how to heat one room when the grid is down. That page has no stove link on purpose. Stoves and fire tools live here.
Why the fire exists
Pick one job. Boil water. Cook. Dry socks. Signal. Warm hands at a ring you built outdoors. A fire that is "just going" is how you burn the pile and the afternoon.
You need air, heat, and fuel. The manual's point is boring and true: most failed fires are wet fuel, no air, or a match under a log the size of a forearm.
Site and safety
Clear to mineral soil or a ring you already have. Rock if you have it. Not under dead branches. Not against a stump that will smolder into the roots. Not on a peat duff you cannot kill.
Check the wind. Check the county burn ban. A drought week is a no.
Have water or dirt in reach before you light. A fire you cannot put out is not a cooking fire.
Never take charcoal, a camp stove, or a generator inside a house, a garage, a tent, or a car. Carbon monoxide does not care that you "cracked a window." Indoor heat is the other page.
Tinder, kindling, fuel
Three sizes. The manual is picky about this because skipping a size is how you get smoke and no flame.
- Tinder takes a spark or a match: dry grass, bark shavings, the dry inner bits of a dead twig, commercial tinder if you have it. If it bends instead of snapping, it is not tinder.
- Kindling is pencil-to-thumb sticks, dead and dry.
- Fuel is the wrist-and-up wood that keeps it, once the kindling has a real flame.
Split wood dries and lights faster than a round. A sharp axe helps. That is how to sharpen the three tools you actually use.
Gather twice what you think. You will use it.
A lay that will light
Build it before you spend the match.
A teepee of kindling over a fist of tinder, with a gap you can reach with a flame, is the household lay. A lean-to of kindling against a small log, tinder under the lean, works in wind if the back is into the weather.
Leave air. A packed nest smothers. Add fuel after you have kindling flame, not before.
One fire, the size of the pot. A bonfire is not dinner.
Lighting it
Match, lighter, or a spark on tinder you prepared.
A ferro rod (we would use a UCO) throws sparks onto dry tinder. It is not magic. Wet grass and a pretty rod still give you no fire. Practice on a calm afternoon, not the first wet night.
Get the flame into the tinder, then feed kindling as it takes. Blow at the base, not the top. When kindling is a real fire, add the first small fuel.
If it dies, rebuild the tinder. Do not drown a log in gasoline. Do not spray starter on a sleeping bag.
Cooking without turning this into a heater page
A small canister stove — an MSR PocketRocket is the one we would name — boils a pot without a wood pile. That is grid-down cooking and camp cooking. It is not a living-room furnace. Use it outdoors or in a place the label allows. Never as a heater in a sealed room.
Wood-fire cooking is a pot on a stable grate or two logs you trust, not a handle hanging over a collapse. Tend it. Then put it out.
Ray Mears' Essential Bushcraft is the book we would hand a neighbor who wants more firecraft than this page. We do not have a buy link yet.
What not to do
- Do not light it under a roof, in a garage, or in a tent.
- Do not use gasoline, diesel, or a spray can as tinder.
- Do not leave it. Dead-out means cold to the touch, dirt or water through the coals, no smoke.
- Do not build it on a windy burn-ban day because you are cold. Leave, or use the house plan on the heat page.
- Do not treat a patio heater or a torpedo heater as "the fire." Those are outdoor machines and they stay outdoors.
If you need a place to sleep out of the weather after the pot boils, that is a shelter job.