Leads the Storm
so make them better the more internal space they have inside their bounds? So make a hollow box and the bigger the hollow space the better?Stop confusing the Chambers with being "part of" the reactor.
They aren't physically part of it, and they don't affect power generation - they consume reactor resources, like engines do (if differently, they still are pure consumers of reactor production). We don't have "Reactor Thrusters."
Chambers exist entirely seperately from the power generation process. Failure to recognize and clarify this confuses their role and their potential.
Maybe make the chambers be actual chambers as per the definition of "chamber" instead of misnamed bricks.
They'll demand a lot more space that way and you can then starting coding them to later house crew as the explanation for how they generate all the mysterious effects they give to ships.