I realized I had a problem when I checked on my molten slickster ranch and found it abandoned. The temperature above my oil pool was too hot for molten slicksters. All the equipment down there, made from steal, was broken.
Soon afterward, my steel liquid pump broke from overheating.
The problem, it turned out, was that the abyssalite layer separating the pool from the underlying magma wasn’t complete: there was a stretch of about 20 tiles made of coal, igneous, and other conductive materials. That stretch had heated up to around 700, and was happily conducting that heat to the oil pool.
The first solution was a rushed turbine room. I found one tiny corner of the oil pool that was at like 269, barely cool enough to sustain a steel pump; and I pumped oil from that corner through the steam room, cooling it down like 60 in one pass and giving me free power.
If that was good, I reasoned, three more turbines would be even better! So I set up another, much larger, steam room. And after plenty of trial and error and some suboptimum choices, I’ve got four turbines running almost nonstop.
The oil goes from about 260 down to about 140, after heating up all the steam. Then I send it through some radiant pipes in the air above that base, cooling the air down enough that I can repair the molten slickster ranch and heating the oil back up to about 210. That drips back into the oil pool.
It’s self-sustaining at this point, I think, granting me a little over 3K power constantly (until I manage to cool the underlying magma off, which should I think take awhile). And in time I’ll rebuild the molten slickster ranch.
Now, off to figure out how to make a goddamned rocket.