I had the idea while making a voidbase on Aquilo : What if Voidworks (Or another type of void-related building), could emit a small quantity of heat that heatpipes can use?
It doesn't need to be 500c. In fact, it would be better if it couldn't be used to make power, like if it was capped at 250c or something. Would be useful on Aquilo as a Void Alternative to Heating Towers and nuclear reactors.