[hulitu]

> If there is something in the way, like parts of your station or other radiators,

or, the sun ...

[m4rtink]

At least I don't think you can realistically overheat the Sun. :-)

But I guess if you make the radiators reflective and hot enough they should still work to a even at Earths orbit in full sunlight ? Well, this is already in a "calculation needed" territor.