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Issue description:

Superheating element from Mekanism doesn't work with the fired crucible

Steps to reproduce:

1. Place a superheating element with a fired curicble on top
2. Put cobblestone into the crucible
3. Heat says 0

Version (make sure you are on the latest version before reporting):

Forge: 34.1.41
Mekanism: Mekanism-1.16.4-10.0.17.444
Other relevant version: exnihilosequentia-1.16-1.3.0.2

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This is not a bug... you need define the superheating element as Variable source.

Most mod-pack devs made it themselfs. I did it, too and it works for me, just fine.

with Crafttweaker and the newest version of Ex Nihilo 1.3.0.2 its this:
<recipetype:exnihilosequentia:heat>.addJSONRecipe("heat_superheating", { "type": "exnihilosequentia:heat", "block": "mekanism:superheating_element", "amount": 15 );
You would have to define it with a data Pack.
the
{ "type": "exnihilosequentia:heat", "block": "mekanism:superheating_element", "amount": 15 }
should work in a separate Json, too.

To echo what @accessdenied0 said, this is not a bug. I chose only to add heat sources from vanilla since I cannot know what mods users will use.