Heat Source - NFIRS

NFIRS Codes Cheat Sheet - NFIRS Coding - NFIRS Examples - FDIDs - POCs

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NFIRS 5.0 Element: ‘Heat Source’

Also known as: ‘heatSource’

Definition: The heat source that ignited the ‘Item First Ignited’ to cause the fire.

Need something else? Here is the complete list of all NFIRS modules and subsequent NFIRS transactions, plus a list of all NFIRS elements.

NFIRS References

• Documenting equipment involved in ignition when the heat source is operating equipment - (NFIRSgram)
• Example Electronic Failure - (NFIRSgram)

See Also

• Item First Ignited

Relational Edit Rules for ‘Heat Source’

NFIRS 5.0 relational edit validation rules are provided to ensure NFIRS data is consistent and correct for the fire/reporting concepts that are being modeled. Relational edits determine relationships between multiple fields / elements. These are the rules for ‘Heat Source’.

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NFIRS Coding

Here are the NFIRS codes for the ‘Heat Source’ element, including any “other” values in case none of the preselected choices match:

Common Examples of Heat Source

More commonly used values for Heat Source…

Groups within ‘Heat Source’

• Operating Equipment:
• Hot or Smoldering Object:
• Explosives, Fireworks:
• Other Open Flame or Smoking Materials:
• Chemical, Natural Heat Sources:
• Heat Spread From Another Fire:
• Other Heat Sources:

All values for Heat Source

Operating Equipment:

• 11 - Spark, Ember or Flame From Operating Equipment.
• 12 - Radiated, Conducted Heat From Operating Equipment.
• 13 - Electrical Arcing.
• 10 - Heat From Powered Equipment- Other.

Hot or Smoldering Object:

• 41 - Heat, Spark From Friction.
• 42 - Molten, Hot Material.
• 43 - Hot Ember or Ash.
• 40 - Hot or Smoldering Object- Other.

Explosives, Fireworks:

• 51 - Munitions.
• 53 - Blasting Agent, Primer Cord, Black Powder Fuse.
• 54 - Fireworks.
• 55 - Model And Amateur Rockets.
• 56 - Incendiary Device.
• 50 - Explosive, Fireworks- Other.

Other Open Flame or Smoking Materials:

• 61 - Cigarette.
• 62 - Pipe or Cigar.
• 63 - Heat From Undetermined Smoking Material.
• 64 - Match.
• 65 - Lighter: Cigarette, Cigar.
• 66 - Candle.
• 67 - Warning or Road Flare; Fusee.
• 68 - Backfire From Internal Combustion Engine.
• 69 - Flame/Torch Used For Lighting.
• 60 - Heat From Other Open Flame or Smoking Materials.

Chemical, Natural Heat Sources:

• 71 - Sunlight.
• 72 - Spontaneous Combustion, Chemical Reaction.
• 73 - Lightning Discharge.
• 74 - Other Static Discharge.
• 70 - Chemical, Natural Heat Source- Other.

Heat Spread From Another Fire:

• 81 - Heat From Direct Flame, Convection Currents.
• 82 - Radiated Heat From Another Fire.
• 83 - Flying Brand, Ember, Spark.
• 84 - Conducted Heat From Another Fire.
• 80 - Heat Spread From Another Fire- Other.

Other Heat Sources:

• 97 - Multiple Heat Sources Including Multiple Ignitions.
• 00 - Heat Source: Other.
• UU - Heat Source: Undetermined.

Transactions containing ‘Heat Source’

A few NFIRS elements are reused accross a number of transactions, but typically the value is captured by one transaction only.

• Fire
• Wildland Fire

Element Specification

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Need more NFIRS help?

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For more information see the NFIRS Cheat Sheet, NFIRS Coding and contact Responserack to learn about our fire department software.