What do Fusion Reactors actually do?

[Martin_Phosphorus]

I have tried using Fusion Reactors as a modded reactors that take in water and output steam. This not only yields wrong amount of steam compared to boilers (which may make sense since 1:1 can well be the hard-wired default), it also produces steam with temperature that doesn't seem to make sense - target temperature definition affects it weirdly and neighbor bonus affects it only by tiny amount.

What is happening?

[eugenekay]

How are you creating the modded Fusion Reactor? Without seeing your code it is hard to guess what is going on. The Vanilla Fusion Reactor always produces Plasma at a 1:1 ratio from the input Coolant, so it may very well be hard-coded in the engine.

It may be easier to create a Modded Boiler which uses fuel_categories = {"nuclear"}, since that is already setup to handle the Water-->Steam conversion correctly. It would need to be re-skinned appropriately, and you would lose the neighbour_bonus feature this way.