Heatsinks have 4 tiers, each one having higher durability and a greater capacity to absorb heat. The tiers roughly correspond to materials that are found in equivalent system tiers, with the exception of tier 4, which requires Fluorite. The only known source of flourite is from a Rich Asteroid received as quest reward for completing the Hurles Co system event chain.
The heatsinks are used to absorb heat from devices such as the ACTR, Nuclear Reactor, and Thermal Exchanger. The Thermal Exchanger serves a dual purpose of using the heatsinks for cooling/heating the interior of the ship, as well as removing built up heat stored in the heatsinks from use in their various devices.
Once a heatsink has reached it's thermal capacity, if it's still in use it will begin to take durability damage as more heat is added. Once it reaches zero durability, it will degrade into nothing and the device which is generating heat will itself take damage and potentially start a fire unless it is quickly deactivated. It is recommended to insert the heatsinks into a Thermal Exchanger to dissipate the stored heat into the hull so the heatsinks can be reused and cycled into and out of devices.
Heatsinks are built in 3D printers using the various combinations of materials listed in the table below:
|Image||Designation||Durability||Heat Capacity||ACTR Teleports||Resources|
|T I Heatsink||14,400 HP||20,000,000||75||50 Copper, 6 Deuterium|
|T II Heatsink||43,200 HP||60,000,000||250||35 Silicon, 5 Beryllium, 12 Deuterium|
|T III Heatsink||86,400 HP||120,000,000||500||50 Aluminum, 10 Beryllium, 24 Deuterium|
|Advanced Heatsink||361,800 HP||440,000,000||1000||50 Aluminum, 10 Beryllium, 20 Flourite|