Thermostatic

The shower has a thermostatic water-mixing valve.

Another source of discontent with the Phase I stock has been obviated by relocation of the interior heating elements and the introduction of thermostatic control; this has eradicated the searing blasts of hot air passengers used to feel about their calves [...].

Most importantly, Wlezien's results revealed thermostatic responsiveness. That is, when spending increases (decreases), the public's support for more spending decreases (increases), other things being equal.