A fire pit

A fire pit or a fire hole can vary from a pit dug in the ground to an elaborate gas burning structure of stone, brick, and metal. The defining feature of fire pits is that they are designed to contain fire and prevent it from spreading.

Certain contemporary fire pit styles include a fire bowl that can either be set in the ground or elevated on legs.

Contemporary types

A metal backyard fire pit

Pre-made fire pits are the most common form of fire pits and can be purchased from a store. These are commonly made of pre-cast concrete or metal or a combination of metal table and stone. They burn usually natural gas, propane (LP) or bio ethanol. Wood-burning fire pits made of metal are also quite common but are under increasing scrutiny due to fire bans and air particulate emissions.[1]

Natural gas and propane burners in these sorts of pre-fabricated vessels are certified under ANSI (American), CSA (Canadian), and CE (European) standards. Unregulated and uncertified fire pit burners are increasingly being scrutinized by regulatory authorities and being denied permits.[2] Fire pits have recommended clearance to combustibles and require at least 6 feet (1.8 m)[3] above the flame and 16 inch (40 cm) circumference from the exterior perimeter of the vessel.

Essentially, a fire pit needs only a hole that can safely contain a fire. This can be as simple as a hole dug in the ground, or as complex as a holed-out brick or rock pillar. A wood-burning fire pit should be located at least ten feet (three meters) away from structures for safety. Use of a fire pit in adverse conditions should be avoided, and basic fire safety precautions apply.

Dakota fire pit

Dakota fire pit

The Dakota fire pit is an efficient, simple fire design that produces little to no smoke.[4] Two small holes are dug in the ground: one for the firewood and the other to provide a draft of air. Small twigs are packed into the fire hole and readily combustible material is set on top and lit. The fire burns from the top downward, drawing a steady, laminar stream of fresh air from the air hole as it burns. Because the air passes freely around the fuel, near complete combustion is achieved, the result being a fire that burns strongly and brightly and with little or no seen smoke. The Dakota fire pit is a tactical fire used by the United States military as the flame produces a low light signature, reduced smoke, and is easier to ignite under strong wind conditions.[5]

This style of fire pit is said to get its name from the Dakota people, who used it while hunting bison herds on the Great Plains. As well as resisting the strong winds of that area, the design also reduced the risk of causing a prairie fire.[6]

Fire pits in history

Many cultures, particularly nomadic ones, would cut the turf above the fire-pit in a turf cutting ceremony, replacing the turf afterwards to hide any evidence of the fire. The youth organization Woodcraft Folk also does this.

Archaeological significance

The remains of fire pits preserve information about past cultures. Radiocarbon dating from charcoal found in old fire pits can estimate when regions were first populated or when civilizations died out. Bones and seeds found in fire pits indicate the diet of that area.

In archaeological terms fire pits are referred to as features because they can be seen and recorded as part of the site but cannot be moved without being destroyed.[7]

See also

References

  1. ↑ "Modern Fire Pits and Outdoor Fireplaces". 2022-02-16. Retrieved 2024-01-08.
  2. ↑ "Certified Gas Fire Pits. USA Canada Europe Australia UK - Paloform". 2022-02-14. Archived from the original on 2022-08-10. Retrieved 2023-02-09.
  3. ↑ "Where To Put Your Fire Pit?". Firepit. Retrieved 2024-01-08.
  4. ↑ "Dakota Fire Hole Construction". wildernessoutfitters. 2014-05-04. Archived from the original on 2021-12-12. Retrieved 2015-02-02.
  5. ↑ "Survival Manual Winter 2002". US Marine Corps Mountain Warfare Training Center. 2002. Retrieved 2024-01-08.
  6. ↑ "The Origins of the Dakota Fire Pit". Stealth Fyre. 30 April 2020. Retrieved 2024-01-08.
  7. ↑ "Binghamton University Archeology of the Divide Project" (PDF). paf.binghamton.edu. 2006.
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