A specialized heat-exchanger to further heat 165°C Steam to 500°C steam. Function otherwise like regular Heat-Exchangers. Use a less valuable resource to first heat water to 165°C seperately, ie. waste wood in regular burner-boilers, or solar-panel powered Electric-Boilers, thus saving the energy so used to heat 15°C water to 165°C steam.
Adds new tiers of nuclear reactors with the goal of minimizing entity counts and allowing updates-per-second (UPS) friendly nuclear setups. Also, adds a burner heat source that requires green and red science to allow the efficient use of coal with turbines and heat exchangers.