This article is about the boss. For the Slayer monster, see Smoke devil.
Not to be confused with Nuclear smoke devil.
Invasion plans
This article has a strategy guide here.
All information on mechanics and strategy will be on this page.
Thermonuclear smoke devil
Thermonuclear smoke devil
Release date 10 April 2014 (Update)
Members? Yes
Combat level 301
Always drops Ashes
Combat info
Hitpoints 240
Aggressive No
Poisonous No
Max hit 8
Weakness Slash
Attack Styles
Magical ranged
Slayer-icon Slayer info
Slayer level 93
Slayer XP 240
Category Smoke devil
Assigned by
Nieve chatheadDuradel chathead
Combat-icon Combat stats
Attack-icon Strength-icon Defence-icon Ranged-icon Magic-icon
230 220 360 310 1
Attack-icon Aggressive stats
White dagger White scimitar White warhammer Magic-icon Ranged-icon
+0 +0 +0 +0 +0
Defence-icon Defensive stats
White dagger White scimitar White warhammer Magic-icon Ranged-icon
+11 +4 +9 +800 +900
Other bonuses Immunities
Strength-icon RangedStrength-icon Attack-icon Poison hitsplat Venom hitsplat
+0 +0 +0 Immune Immune
Attack speed
Monster attack speed 8

The Thermonuclear smoke devil, often referred to as Thermy, is the boss version of the Smoke devil, found in the Smoke Devil Dungeon. These require a minimum of 93 Slayer to kill. Located at the Smoke Devil Dungeon south of Castle Wars, the thermonuclear smoke devil can only be attacked on a smoke devil task.

This monster is the only monster to drop the Smoke battlestaff and the pet smoke devil. Their non-boss variants, however, also drop the Occult necklace.

A dwarf multicannon cannot be used inside the boss room. If attempted, the cannon will be destroyed (similar to areas like at KBD or KQ).


100% dropsEdit

Item Quantity Rarity GE market price
Ashes Ashes 1 Always 28


Item Quantity Rarity GE market price
Rune dagger Rune dagger 1 Common 4,562
Rune scimitar Rune scimitar 1 Common 15,130
Rune battleaxe Rune battleaxe 1 Common 24,518
Mystic air staff Mystic air staff 1 Uncommon 25,136
Mystic fire staff Mystic fire staff 1 Uncommon 25,920
Dragon scimitar Dragon scimitar 1 Rare 59,606
Ancient staff Ancient staff 1 Rare (1/129) 79,068
Smoke battlestaff Smoke battlestaff 1 Rare (1/512) 2,087,448


Item Quantity Rarity GE market price
Red d'hide body Red d'hide body 1 Uncommon 6,478
Rune chainbody Rune chainbody 1 Uncommon 29,635
Occult necklace Occult necklace 1 Rare (1/350) 427,977
Dragon chainbody Dragon chainbody 1 Very rare (1/2,000) 808,785


Item Quantity Rarity GE market price
Smoke rune Smoke rune 100 Common 2,000
Air rune Air rune 300 Common 1,500
Soul rune Soul rune 60 Common 8,640
Rune knife (p) Rune knife(p++) 50 Uncommon 39,000
Rune arrow 5 Rune arrow 100 Uncommon 8,000


Item Quantity Rarity GE market price
Herb seed 5 Snapdragon seed 2 Uncommon 87,596
Magic seed 5 Magic seed 1 Rare 201,185


Item Quantity Rarity GE market price
Pure essence Pure essence 300 (noted) Common 1,500
Desert goat horn Desert goat horn 50 (noted) Uncommon 3,900
Molten glass Molten glass 100 (noted) Uncommon 15,800
Mithril bar Mithril bar 20 (noted) Uncommon 14,800
Grimy toadflax Grimy toadflax 15 (noted) Uncommon 33,075
Coal Coal 150 (noted) Uncommon 26,700
Gold ore Gold ore 200 (noted) Uncommon 61,400
Onyx bolt tips 5 Onyx bolt tips 12 Uncommon 101,436
Grapes Grapes 100 (noted) Rare 25,800
Diamond Diamond 10 (noted) Rare 21,070
Magic logs Magic logs 20 (noted) Rare 23,020


Item Quantity Rarity GE market price
Ugthanki kebab Ugthanki kebab 3 Common 2,100
Tuna potato Tuna potato 3 Uncommon 3,000
Prayer potion(4) Prayer potion(4) 2 Uncommon 16,046
Sanfew serum(4) Sanfew serum(4) 2 Uncommon 38,066


Item Quantity Rarity GE market price
Coins 10000 Coins 10,000–19,996 Common Not sold
Tinderbox Tinderbox 1 Common 66
Bullseye lantern (unlit) Bullseye lantern (unlit) 1 Uncommon 1,444
Fire talisman Fire talisman 1 Uncommon 2,042
Dragonstone ring Dragonstone ring 1 Rare 19,364
Crystal key Crystal key 1 Rare (1/128) 30,562
Clue scroll (elite) Clue scroll (elite) 1 Rare (1/500) Not sold
Pet smoke devil Pet smoke devil 1 Very rare (1/3,000) Not sold

Rare drop table

In addition to the drops above, this monster also has access to the rare drop table.

Show/hide rare drop table
Item Quantity Rarity GE market price
Coins 1000 Coins 3,000 Common Not sold
Loop half of key Loop half of key 1 Common 9,500
Tooth half of key Tooth half of key 1 Common 19,897
Chaos talisman Chaos talisman 1 Common 423
Uncut sapphire Uncut sapphire 1 Common 783
Uncut emerald Uncut emerald 1 Uncommon 844
Uncut ruby Uncut ruby 1 Uncommon 1,625
Nature talisman Nature talisman 1 Uncommon 399
Steel arrow 5 Steel arrow 150 Uncommon 4,200
Rune arrow 5 Rune arrow 42 Uncommon 3,360
Rune javelin Rune javelin 5 Uncommon 720
Adamant javelin Adamant javelin 20 Uncommon 1,300
Runite bar Runite bar 1 Uncommon 12,489
Nature rune Nature rune 67 Uncommon 15,209
Law rune Law rune 45 Uncommon 9,765
Death rune Death rune 45 Uncommon 10,845
Rune battleaxe Rune battleaxe 1 Uncommon 24,518
Rune 2h sword Rune 2h sword 1 Uncommon 37,956
Rune sq shield Rune sq shield 1 Uncommon 22,553
Silver ore Silver ore 100 (noted) Uncommon 7,400
Dragonstone Dragonstone 1 Uncommon 19,002
Uncut diamond Uncut diamond 1 Rare 3,395
Dragon med helm Dragon med helm 1 Rare 58,976
Rune kiteshield Rune kiteshield 1 Rare 32,183
Rune spear Rune spear 1 Rare 12,069
Shield left half Shield left half 1 Rare 65,324
Dragon spear Dragon spear 1 Rare 41,694

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