How Hot is a Bonfire? – Bonfire Temperature

A beach or campfire offers a pleasant central place and a cooking spring for marshmallows. It is also a very hot centerpiece that can be removed quickly if not properly handled. A fire should be considered as hot as 1,100 degrees Celsius and treated with respect (2,012 degrees Fahrenheit). It’s warm enough to melt metal quickly. A feast may get hot enough to melt some alloys at 1,100 °C (2.012 °F) or 1.100 degrees Celsius.

Let us see how hot a campfire is:

How Hot is a Bonfire?

Bonfire temperatures range from 800 to 1,200 degrees Celsius (1,472 to 2,192 degrees Fahrenheit). The hottest part of the fire, known as the “core” or “pyre,” is typically found in the center, where the combustion process is most intense.

Bonfires and fires, in general, are complex chemical reactions that release heat and light as they burn. While bonfires can reach temperatures from 800 to 1,200 degrees Celsius (1,472 to 2,192 degrees Fahrenheit), the temperature of a fire can vary significantly, primarily depending on the fuel source and the amount of oxygen available.

Understanding the Core of a Fire

The hottest part of a fire, known as the “core” or “pyre,” is typically found in the center. This is where the combustion process is most intense. The core is where fresh oxygen, provided by the surrounding air, meets the fuel source. This results in a continuous cycle of combustion that keeps the fire going.

Key Points:

  • The fire core’s high temperature is due to the intense combustion process.
  • The continuous supply of oxygen and the burning of the fuel source maintain the high temperature in the fire core.

Variations in Flame Temperature

Flame temperatures can significantly vary depending on the conditions. Here’s a breakdown of typical flame temperatures based on their color:

  1. Red Flames: Even though red flames are typically considered ‘cooler’ in the hierarchy of fire temperature, they are still quite hot, ranging between 525 °C and 1000 °C.
  2. Orange Flames: These flames are hotter than red flames, varying between 1100°C and 1200°C.
  3. White Flames: White flames are even hotter, reaching temperatures between 1300°C to around 1500°C.
  4. Blue Flames: At the highest part of the scale, blue flames or flames with a blue foundation can reach incredibly high temperatures, ranging from around 2500° C to 3000° C.

Key Points:

  • Red flames, while on the more fantastic end of the scale, can still reach temperatures up to 1000 °C.
  • Orange flames are hotter, ranging between 1100°C and 1200°C.
  • White flames can reach temperatures of 1300°C to 1500°C.
  • Blue flames, often seen with gas-burning sources, can reach temperatures up to 3000° C.


Understanding Bonfire Flame Colors

The colors of bonfire flames can vary greatly depending on the fuel source, temperature, and the presence of certain elements. Generally, flames can be yellow, orange, red, blue, and even purple. Each color signifies a different temperature range, and the presence of various elements in the burning fuel can produce distinct hues.

Yellow, Orange, and Red Flames

Typically, a bonfire using wood as its primary fuel source will exhibit yellow, orange, and red flames. This range of colors is primarily due to the incomplete combustion of the fuel. Yellow and orange flames are often seen when the carbon in the wood is not completely combusted, producing soot or carbon particles. These particles glow when heated, creating a yellow or orange color. Red flames, which are more relaxed than yellow or orange flames, are typically seen towards the outer edges of the flame, where the temperature is lower.

Key Points:

  • Yellow and orange flames occur due to incomplete combustion, creating glowing soot particles.
  • Red flames are usually seen towards the outer edges of the fire, where the temperature is lower.

Blue and Purple Flames

Blue and purple flames are usually signs of complete combustion and are associated with higher temperatures. Blue flames are typically seen near the base of the fire, where the combustion process is most efficient and the temperature is highest. Purple flames can occur when certain elements are present in the fuel source. For example, wood often contains trace amounts of elements such as potassium and calcium, which can produce a purple hue when burnt.

Key Points:

  • Blue flames signify complete combustion and are associated with higher temperatures.
  • Purple flames can occur due to some aspects of the fuel source, such as potassium and calcium.

What do you need for a bonfire?

The three things needed to construct a bonfire are oxygen, fuel, and heat. Fire is the resultant reaction of the wood-oxygen contact, which produces heat. Wood requires around 16% oxygen to burn (air has 21%); thus, a well-constructed fire will grow quite hot. The wood must be appropriately stacked to ensure that the candy is lit and quickly burns for over a few minutes. Put first pliers (twigs, dry leaves), then sticks about 1 inch (3 cm) round, preferably, and finally logs. The tiny wood parts ignite faster than logs since they reach high temperatures faster.

This helps to ignite the sticks, which in turn supply the logs with enough heat to flash. Dry wood should be used to make bonfires—other materials, such as plastic, might threaten the environment and emit poisonous gasses not supposed to be swallowed; living items, such as green middle sticks, will not be burned. Most wood kinds start burning at around 300°C. The gasses are explosive, and the wood temperature rises to approximately 600 °C (1,112 degrees Fahrenheit). When all its gases have been liberated from wood, wood leaves wood and ashes. Charcoal burns at 1,100°C at temperatures (2,012 degrees Fahrenheit).

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The ignition temperature of the wood is between 250 – 300 C. After ignition, the wood begins to carbonize at a rate of 0.8 mm per minute.


Temperature examples

  • Flame of a burning candle – At about 1400°C, the hottest region of a flame burns while the average temperature is typically 1000°C.
  • Woodfire – The fire is burning at about 600°C. Woodfire. Depending on the wood type and its condition, the temperature might fluctuate.
  • Bonfire – A bonfire’s temperature steadily warms to around 600°C, although bonfires can reach 1000-1100°C.
  • Bunsen burner: A bunsen burner may be adjusted to measure around 300° C with safety flames. With piercing turquoise sparks evident, bunsen burners may reach 1500°C fully open.
  • Burning match — A domestic match burns at about 600-800°C for such a tiny flaming.
  • Propane torch – Propane and air combustion is about 1900 degrees Celsius. The temperature of a butane fire will be comparable.


Igor Milosevic
Inflation Is Eating IRA/401(k) Savings! How to Protect Your IRA/401(k) in Bad Times?


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