ext and me have been working/testing the Molten salt reactors from Nuclearcraft. We found out that the setups got big really quick. Even with a normal sized reactor the heat exchanger would need to be massive to keep up.

I dug into the config and found this config:

Multiplier for heat transfer rate to and from this type of tube. For heat exchanging tubes, heating recipes will be faster by this factor while cooling recipes will be slower by this factor. For condensation tubes, recipes will simply be faster by this factor. Order: copper, hard carbon, thermoconducting alloy.

D:heat_exchanger_conductivity <
    1.0
    1.1
    1.25

We would like to se those number sped up so the Exchanger can keep up a bit better.