Fire pit

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.

Fire pits have recommended clearance to combustibles and require at least 6 feet (1.8 m) above the flame and 16 inch (40 cm) circumference from the exterior perimeter of the vessel.

Small twigs are packed into the fire hole and readily combustible material is set on top and lit.

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.

Radiocarbon dating from charcoal found in old fire pits can estimate when regions were first populated or when civilizations died out.

[citation needed] 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.

[citation needed] A fire ring may be nothing more than a short, wide section of metal tube, partially buried in the ground.