Liquid Heat Exchanger

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Liquid Heat Exchanger is a block which extracts heat from specific fluids. This machine requires at least two additional Heat Conductors in order to function. As of build 694, the only two acceptable input fluids are Lava and Hot Coolant.


When you place a Liquid Heat Exchanger in the world, the output face will be the side closest to you. It is distinguishable by the orange square, which is actually that Heat Conductor from the crafting recipe. Like all other, the heat is sent out the output face, so a input face connects here.

Using (right-clicking on) the Liquid Heat Exchanger will open its GUI. The center of the GUI consists of ten slots. Heat Conductors go in here: at least two and at the most ten. Each Heat Conductor increases the heat yield per milliBucket of fluid by 10hU, so it is highly recommended to use all 10 slots. The minimum output is therefore 20hU, and the maximum is 100hU. The current output is displayed on the top of the GUI.

On the left and right sides are two internal tanks for the input (left) and output (right) fluids. Each milliBucket of fluid is worth 200 * [number of Heat Conductors] hU. Beneath each fluid tank are two slots. The left slot is for input cells, and the right slot is for output cells. Either normal or may be used. The right slot is for output cells. The input cells under the input tank should be filled with valid input fluids; they will be emptied into the input tank as needed and, if Universal Fluid Cells were used, the empty Universal Fluid Cell will be returned in the output cell slot under the input tank. The input cells under the output tank should be empty cells, and the output cells under the output tank will be filled with the output fluid.

This chart summarizes the recipes which made in this machine:

Input Fluid Output Fluid
Lava Pahoehoe Lava
Hot Coolant Coolant

The Liquid Heat Exchanger will only run if there is a place for the heat to go; it will not extract heat from the input fluid unless there is sufficient room for all of the heat and resulting output fluid. It is also always "on", and will produce heat whenever it can. Redstone signals do not affect the Liquid Heat Exchanger.


Grid Glass.png
Grid Glass.png
Grid Iron Item Casing.png
Grid Empty Cell.png
Grid Empty Cell.png
Grid Heat Conductor.png
Grid Glass.png
Grid Glass.png
Grid Iron Item Casing.png
Grid Liquid Heat Exchanger.png


The Liquid Heat Exchanger takes Fluid Ejector Upgrades and Ejector Upgrades. The Fluid Ejector Upgrade is highly recommended, as this allows you to automatically output the Coolant or Pahoehoe Lava into a Fluid Distributor. Upgrades go into one of the three slots on the bottom-middle of the GUI.