By michele rose. fire pits design. Published at Saturday, November 11th, 2017 - 07:12:33 AM.
FUEL: Given the right circumstances, most substances will burn or combine with oxygen in combustion, a chemical process that liberates heat. (Remember that fire is the heat and light resulting from combustion.) However, the temperature at which things will burn in fire pits, called the ignition point or kindling point, varies according to the substance. For example, the kindling point of film, nitrocellulose, is only 279 degrees Fahrenheit - not recommended for use in fire pits. For wool it is 401 degrees Fahrenheit - obviously making fire pits hard to light, and for newsprint 446 degrees Fahrenheit - perfect for fire pits. What Fuel should I use in my Fire Pit? Wood or charcoal can be used in most fire pits. Some fire pits run on gas, a great alternative. See Artistic Fire Pits for converting your fire pit to gas.
In describing the basic essentials for fire, many speak of the "fire tetrahedron." In other words, besides the original "fire triangle" of fuel, heat and oxygen, they add the fourth essential of chemical reaction. Fire pits use all four! It is necessary for us to understand the part each of these plays in producing fire so that we can put it to use in either lighting our fire pit and preventing or extinguishing unwanted fires. For example, to put out a grease fire on the stove, turn off the stove (removing the heat) and cover with a lid (removing the oxygen that feeds the fire). This will also benefit those contemplating buying a fire pit, helping them to decide which fire pits are best for them. So to get a better idea of what causes fire in your fire pit, let’s take a look at these four basic elements.
The basic design The main functional feature of a fire pit is an excavated hole in the ground. This hole is usually circular and has a diameter of not less than 18 inches. Most fire pits will be between 2 and 3 feet in diameter and the base of the pit will be between 6 inches and one foot below the surrounding finished ground level. In order to make the fire pit more functional, more attractive and more versatile, a small wall is built around the perimeter of the pit. This enclosing wall will usually be between 12 to 18 inches high. It acts to contain the fire, tidy up the appearance and radiate and convect heat outwards from the fire pit. A more complete design also supplements the fire pit with some surrounding hard landscaping and masonry bench seating.
Fire pits are something that can be used and enjoyed all the year, it is true that in the winter the use of fire pits and fireplaces has much more sense due to the fact that these tools can be used to heat up rooms and save some costs on electric or gas heating, an efficient fireplace can heat a large room, without the need to use any other energy source for heating. Fire pits can be permanent or portable. They serve as containers for barbecues, bonfires, as well as outdoor heat. They also come in different sizes, sources and accessories. Some fire pits use wood while others use natural gas. Several fire pits are also designed to roast marshmallows while others can carry out a more complicated function such as container of a bonfire during a camping adventure. In selecting a fire pit, it is best to weigh the pros and cons. If you wanted a portable fire pit, choose a lightweight fire pit that can be assembled easily. If you want a fire pit for your patio, better use a dish or bowl design. Be sure that fire pit special products like screen dome or cover are part of the package. Also consider the size of the equipment especially when you intend to use logs and coals. When you are purchasing a fire pit with grill, make sure that there is an attached tool to raise the grill.
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