Heat Damage

DAMAGE EFFICACY
x1.5 damage to Infested
x0.5 damage to Kuva Grineer

STATUS EFFECT

 Heat sets enemies on fire causing them to panic and temporarily reduces their armor up to 50% with multiple stacks.

—In-game Description

 Heat Damage is one of the four primary elemental damage types. Deals increased damage to Infested but reduced against Kuva Grineer. Its Status Effects ignites enemies with damage over time, causing them to panic and temporarily reduces Armor.

Status Effects[]

General[]

The status effect of  Heat damage is Ignite. It sets the enemy ablaze, which makes them panic, reduces their armor by up to 50% and, after a 1 second delay, deals a tick of damage every second for 6 seconds.

Enemies killed while under or by a  Heat proc will be left in ashes, burning away shortly afterward.

Damage Over Time[]

Each tick deals  Heat damage equal to:

${\displaystyle { \begin{aligned} \text{Modded Base Damage} &= \text{Base Damage} \times (1 + \text{Base Damage Bonuses}) \times (1 + \text{Faction Damage Bonuses}) \end{aligned} } }$

Notice that modded base damage calculation used for DoT is not the same as normal damage calculations, ignoring physical and elemental damage bonuses.

${\displaystyle { \begin{aligned} \text{Heat Proc Damage per Tick} &= 0.5 \times \text{Modded Base Damage} \\ &\qquad \times (1 + \text{Heat Damage Bonuses}) \\ &\qquad \times (1 + \text{Faction Damage Bonuses}) \\ &\qquad \times \text{Additional Multipliers} \end{aligned} } }$

Additional Multipliers include modded critical multiplier on Critical Hit and multipliers on Enemy Body Parts; these stack multiplicatively with each other.

For example, tick damage for a weapon with an innate 100 damage,  Serration,  Hellfire, and  Bane of Grineer will be:

Modded Damage = 100 × (1 + 1.65) × (1 + 0.3) = 344.5

Heat Mod Multiplier = (1 + 0.9) × (1 + 0.3) = 2.47x

Tick Damage = 0.5 × 344.5 × 2.47 = 425.4575

As can be seen in the above calculations for tick damage, Faction Damage is applied twice, making their effective bonus = (1 + Faction Damage bonus)². This is a 1.30*1.30 = 1.69 or +69% increase for the 30% Faction Damage mods and 1.55*1.55 = 2.4025 or +140.25% for the 55% Primed Faction Damage mods.

Heat Inherit and Repeated Application[]

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This article/section contains unofficial information, concepts, or terminology derived from or based on community discussion, invention, or knowledge. It may be subjective and contain information or terminology that is not used by Digital Extremes or in official WARFRAME communications, and may not be an officially recognized concept.

"Heat Inherit" is a community term

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Clarify Heat inherit mechanic. There is no mention of first application's modded Heat percentage bonus and Faction Damage applying to all subsequent procs.

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Repeated application of  Heat procs do not stack tick damage in the same way other damage over time (DoT) status effects like  Toxin,  Electricity, or  Slash do. Instead, a  Heat proc both adds a stack and refreshes the duration of all currently active heat stacks on the target. This allows for ramping up  Heat tick damage indefinitely (scaling up linearly) as long as heat status is kept refreshed within the 6 second effect duration (modified by Status Duration). Additionally, all  Heat status stacks are automatically consolidated into one tick of damage per second, with new heat procs refreshing and further adding to this tick damage.

Crowd Control[]

Enemies affected by a  Heat proc are ignited in flames and will panic and flail around for a few seconds, preventing them from taking any other actions. The length of the panic animation depends on enemy type: approximately 4 seconds for humanoids, 3 for most Infested, and 2 for MOAs and Chargers, however Ospreys, Bosses and Tenno are immune, and their ability to act is not impeded. Repeated application of  Heat status will reapply the panic effect.

Armor Stripping[]

The  Heat status effect's armor strip has a ramp-up time when it first procs and a ramp downtime when the proc ends. Every 0.5 seconds after the initial proc, the enemy will have 15%, 30%, 40%, 50% of its armor stripped. It will therefore take 2 seconds to reach the maximum armor strip.^[1] Proccing more heat status effects within this time frame will not speed up the armor stripping process.

After the proc ends, the target will regain armor every 1.5 seconds for 6 seconds. The enemy's armor strip will decrease as follows: 50%, 40%, 30%, 15%, 0%. ^[2]

Status Duration mods will increase the time intervals for the armor strip as expected. For example, with +100% Status Duration, the armor strip will occur every second instead of every half second. As a result, the full 50% armor strip will only be achieved after 4 seconds.

 Heat status armor reduction is multiplicative with other armor reduction sources. This can be expressed as the following:

Armor after reduction = (1 - 50%) × [1 - (20% + 6% × Number of Corrosive stacks)] × (1 - 18% × Number Corrosive Projections)

Railjack[]

The status effect of  Heat damage against Railjack space enemies is Sear, dealing 6 ticks of damage over 5 seconds. Against the Tenno's Railjack, it causes a Fire Hazard which causes ship armaments to overheat faster and cool down slower.

Sear ticks deal 100% × Modded Damage × (1 + Heat Damage bonuses) as  Heat damage. Unlike standard heat, each proc has an independent duration and is not refreshed by additional heat procs.

Elemental Combinations[]

 Heat damage mods can be combined with other elemental mods to create a new elemental damage type.

•  Heat +  Cold =  Blast
•  Heat +  Toxin =  Gas
•  Heat +  Electricity =  Radiation

Heat Sources[]

Main article: Category:Heat Damage

Enemies[]

Flameblade wielding the  Twin Basolk

Scorch wielding the  Ignis

Napalm wielding the Pyrotechnic Ogris

General Sargas Ruk uses Blast Grenade, Fire Blast, and Inferno

Lieutenant Lech Kril (Phase 2) uses Fire Wave

Hyekka Master wielding the  Ignis and can throw Fire Bombs

Exploiter Orb

Fusion MOA firing a Plasma Beam

Hyena NG uses Blast Grenade and Fire Wave

Corrupted MOA firing a Plasma Beam

Machinist

Mods[]

• Rifle
• Shotgun
• Pistol
• Melee
• Archgun
• Archmelee
• Warframe
• Companion

 Hellfire

 Thermite Rounds

 Wildfire

Abilities[]

• Ember
• Citrine
• Chroma (Heat)
• Gauss
• Lavos
• Nezha
• Protea
• Titania
• Wisp
• Odonata (Archwing)
• Bonewidow (Necramech)
• Voidrig (Necramech)

• Fireball
• Fire Blast
• Inferno

	1 25	Fireball Charge and release a fiery projectile that ignites enemies on contact. Introduced in Vanilla (2012-10-25)	Strength:150 / 275 / 300 / 400 ( Heat damage on impact) 50 / 100 / 125 / 150 ( Heat area damage)
			Duration:1.5 s (combo window)
			Range:3 m (radius)
			Misc: 100% ( Heat status chance) 8.0x (combo damage multiplier cap) +1%/s (heat generation rate bonus for Immolation) 500% (Damage increase)

 Phoenix Blaze

Arcanes[]

 Magus Melt

Sources of Heat Resistances[]

Arcanes[]

 Arcane Ice

Mods[]

 Flame Repellent

 Orgone Tuning Matrix

Additional Effects[]

Some mods and arcanes add additional effects when a  Heat occurs or dealing  Heat damage.

 Archon Vitality

 Cascadia Flare

 Topaz Archon Shard

Tips[]

•  Magus Accelerant is a rare case of resistance reduction that will multiply the effects of heat. It is especially effective against Proto Shield, able to increase the -50% damage modifier against heat to +15% with a single application, a 2.3x damage bonus. However, it does not reduce armor resistance, where it would have an exponential effect with health resistances.
•  Heat damage and its combination elements are not very effective against Corpus. In addition to  Heat damage being reduced against Proto Shields,  Gas damage is reduced against Flesh and  Radiation damage is reduced against Shields (though it is increased against Robotic).

Media[]

Heat visuals on a melee weapon

An enemy killed while affected by a heat proc

An enemy under the effects of a heat proc

Patch History[]

References[]

CollapseDamage Mechanics Edit
Offense		Attack Speed • Buff & Debuff • Critical Hit • Damage (Faction Damage Bonus, Positive Type Modifier, Quantization) • Damage Falloff • Damage Reflection • Enemy Body Parts • Fire Rate • Multishot • Punch Through • Status Effect
Defense		Armor • Damage Attenuation • Damage Reduction • Health (Healing) • Invulnerability • Negative Damage Type Modifier • Overguard • Shield
Damage Types
Physical (IPS)		Impact •  Puncture •  Slash
Elemental	Primary (HCET)	Heat •  Cold •  Electricity •  Toxin
	Secondary	Blast •  Corrosive •  Gas •  Magnetic •  Radiation •  Viral
Special		Tau •  True •  Void
Hidden/Internal		Cinematic • Energy Drain • Shield Drain
Status Effects
Physical		Knockback •  Weakened •  Bleed
Elemental	Primary	Ignite •  Freeze •  Tesla Chain •  Poison
	Secondary	Inaccuracy •  Corrosion •  Gas Cloud •  Disrupt •  Confusion •  Virus
Special		Bullet Attractor
Effect Only		Big Stagger •  Disarmed •  Impair (PvP only) •  Knockdown •  Lifted •  Microwave •  Parried •  Ragdoll •  Silence •  Sleep •  Slow •  Stagger •  Stun
Shield, Armor, and Health Classes
Tenno		Tenno Shield • Tenno Armor • Tenno Flesh
Grineer		Grineer • Kuva Grineer
Corpus		Corpus • Corpus Amalgam
Infested		Infested • Infested Deimos
Corrupted		Orokin
Sentient		Sentient
Narmer		Narmer
Zariman		Zariman
The Murmur		The Murmur
Miscellaneous		Hit Points • Object • Overguard
Calculating Bonuses