Kits

Kit (Large Direct Heat Exchanger)

Updated 3/8/2026

Kit (Large Direct Heat Exchanger)

Large Direct Heat Exchanger -

Gas + Gas [[File

large direct heat exchanger gas to gas.png

Construction Steps

StepToolItem
1WrenchKit (Pipe) x1
2WelderSteel Sheets x1

Deconstruction Steps

StepToolRecovered Item
1Hand DrillKit (Large Direct Heat Exchanger)
2Hand DrillKit (Pipe) x1
3Hand DrillSteel Sheets x1

Super-Large Direct Heat Exchanger

(Gases) [[File

super large direct heat exchanger gases.png

Construction Steps

StepToolItem
1WrenchKit (Pipe) x3
2WelderSteel Sheets x3

Deconstruction Steps

StepToolRecovered Item
1Hand DrillKit (Large Direct Heat Exchanger)
2Hand DrillKit (Pipe) x3
3Hand DrillSteel Sheets x3

Description

"Direct Heat Exchangers equalize the temperature of the two input networks." — Stationpedia Exchanges heat between two pipe networks very quickly. Comes in two variants, large and super large, which both act as bulkier upgrades to the Small Direct Heat Exchanger. It's temperature-swapping counterpart is the Counterflow Heat Exchanger. <small><sub>pun intended</sub></small>

Usage

It's purpose is to equalize the temperature of two pipe networks without allowing their contents to mix.

The heat exchanger does not have an internal volume and instead transfers heat directly between the two input pipe networks. A meter on the side displays the surface area and heat exchange rate in joules per tick.

Heat Transfer

Heat will flow from warmer to colder at a rate that increases with a greater difference in temperature. Newton's law of cooling can be used to approximate the rate of heat transfer according to the equation:

   Rate = h*A*(T₁-T₂)

Where:

  • h = Heat Exchange Coefficient: 100 W/m²*K if both networks are at or above either 1atm or 1% liquid volume, scaled down by whichever factor is greater for each network.

  • A = Heat Exchange Area (1 m² for Small Direct Heat Exchanger, 8 m² for Large, 28 m² for Super-Large)

  • T₁ = Input 1 Temperature

  • T₂ = Input 2 Temperature

Notes

  • It has no logic port
  • Requires frame support, unlike the small heat exchanger
  • In older versions, heat exchangers had 2 inputs and 2 outputs intended for active liquid flow. This feature has been consolidated in the form of the counterflow heat exchanger

Prefab Information

Prefab HashPrefab Name
Gas to Gas-1230658883StructureLargeDirectHeatExchangeGastoGas
Gas to Liquid1412338038StructureLargeDirectHeatExchangeGastoLiquid
Liquid to Liquid792686502StructureLargeDirectHeatExchangeLiquidtoLiquid
Gases (Super-Large)-257115623StructureSuperLargeDirectHeatExchangeGastoGas
Liquids (Super-Large)223034547StructureSuperLargeDirectHeatExchangeLiquidToLiquid
Gas To Liquid (Super-large)1905804401StructureSuperLargeDirectHeatExchangeGastoLiquid