Thermal Stone

Thermal Stone
Crafting
Recipe	×10 ×1 ×3
Tab
Tier
Properties
Durability	Has no durability
Stacks up to	Does not stack
Perk
Stores temperatures for travel
Code
"heatrock"

“Heat without the flame... what fun is that?”

–Willow

The Thermal Stone is a Survival item in Don't Starve. It requires an Alchemy Engine to prototype, and costs 10 Stones, 1 Pickaxe, and 3 Flint to craft. Its purpose is to delay body temperature loss, preventing the player from Freezing in the Winter.

A Thermal Stone absorbs heat from fire, regardless of whether it is on the ground, in a Chest, or in the player's inventory. The size of the fire affects the maximum charge the stone can attain. A "glowing orange" Thermal Stone provides a maximum amount of 120 points of insulation.

Temperature stages

A Thermal Stone's maximum temperature is 60 °C. There are five visual states that correspond to its current temperature range:

Freezing White : < 0°C

Blue : 0°C - 25°C

Grey : 25°C - 40°C

Yellow :40°C - 50°C

Glowing Orange : 50°C - 60°C

Reign of Giants

In the Reign of Giants DLC, cold Thermal Stones are used in the Summer to prevent Overheating. It can be cooled by placing it next to an Endothermic Fire, in an Ice Box, or in Snow Chester.

While carried in a Backpack, Insulated Pack, Piggyback, or Krampus Sack, Thermal Stones can still affect the player's temperature, and actually do so more than when carried in inventory slots. There currently exists a bug where multiple Thermal Stones stored in a pack can multiply the rate and limit that a player's temperature is affected. Carrying more than one Thermal Stone in a pack can overheat the player if both Stones are hot, even in the Winter. Conversely, two cold Stones in a pack can freeze the player, even in the middle of Summer.

Players can use this to their advantage during Winter and Summer by preparing packs filled with Thermal Stones and fuel next to fire pits (a Fire Pit in Winter, an Endothermic Fire Pit in Summer). When the weather threatens a player's temperature, they can pick up the pack, add fuel to the pit and stand close to the fire. If the player waits until they are on the verge of taking damage from the temperature change, they can take off the pack and switch to clothing appropriate for the weather (eg. Beefalo Hat & Hibearnation Vest in Winter) and will be able to venture out for a long time before having to worry about their temperature again.

With the addition of Moleworms, players are at risk of having the mob take the stone (as it would any mineral or turf item). Caution must be taken, especially around Deciduous biomes.

File:TabTools.png Usage

2×

5×

Tips

• The crafting recipe allows even the most worn out pickaxe to be used.
• In Winter, the Thermal Stone actually freezes the player at its coldest state. If available, let Chester carry it when this happens.
• Carrying multiple Thermal Stones in inventory slots gives marginal benefit as they would all cool down at the same rate, although all stones will transfer their heat to the player as long as the temperature of the each stone is greater than the player's temperature. As mentioned above, however, multiple stones can be used to take advantage of a bag's multiplicative effect.
• Having some Thermal Stones always waiting by the fire allows for quick switching, instead of waiting for a single one to charge. 
• In Don't Starve Together, Thermal Stones lose 12.5% of their durability every time its color changes to gray, so it's wise to maintain its temperature whenever feasible, so as to prolong durability. It can, however, be repaired with a Sewing Kit, which will fully repair it.

Trivia

• This item was added in the Doorway to Adventure update.
• The Thermal Stone was renamed from Heat Stone to best fit its functionality in the Reign of Giants DLC, since it can also be used to cool the player.
• During RoG Summer, the ambient temperature becomes hot enough for the Thermal Stone to begin heating up without having to be near fire.
• If Thermal Stone is placed next to a fire in RoG Winter, it can potentially cool faster than it heats causing the player to freeze even when standing near the fire. It is unknown whether or not this is a bug.
• In the final release of the DLC, Where there's a Wilson..., the Thermal Stone received a new, cleaner asset for when it is at minimum temperature. Also in this update, the minimum temperature for the Thermal Stone was set to 25 in the Summer, solving the previous issue where holding a frozen Thermal Stone would cause freezing damage in the Summer.
• The Thermal Stone emits light at maximum temperature in both Don't Starve and Don't Starve Together, but not in Reign of Giants.
• Surprisingly, a thermal stone can be used to dry off a player with as much efficiency as a fire. As long as wetness is going down, the player can stand next to a thermal stone of any color to dry off quickly. This can help while using the Endothermic Fire, as it does not dry the player off like the Fire Pit.

Gallery

Thermal Stone near fire.

Thermal Stone Light Radius; Crock Pot Light Radius.

Thermal Stones that haven't heated up yet placed by a roaring fire.

The Thermal Stone lit up surroundings in older versions of Don't Starve.

Thermal Stones.png

This displays 6 colors of the thermal stone.

• DS
• RoG
• SW
• Ham
• DST