thermostat ta atomatik yana daidaita adadin ruwan da ke shiga cikin radiyo bisa ga yanayin zafin ruwan sanyi kuma yana canza kewayon zagayawa na ruwa don daidaita ƙarfin watsawar zafi na tsarin sanyaya kuma tabbatar da cewa injin yana aiki a cikin kewayon zafin jiki mai dacewa. Dole ne a adana ma'aunin zafi da sanyio a cikin kyakkyawan yanayin fasaha, in ba haka ba zai yi tasiri sosai ga aikin injin na yau da kullun. Idan babban bawul ɗin thermostat ya buɗe a makare, zai haifar da zafi fiye da injin; Idan babban bawul ɗin ya buɗe da wuri, za a tsawaita lokacin zafin injin kuma zafin injin ɗin zai yi ƙasa sosai.
Gabaɗaya, manufar thermostat ita ce kiyaye injin daga yin sanyi sosai. Misali, bayan injin yana aiki da kyau, injin na iya yin sanyi sosai a saurin hunturu ba tare da na'urar auna zafin jiki ba. A wannan lokaci, injin yana buƙatar dakatar da zagawar ruwa na ɗan lokaci don tabbatar da cewa zafin injin ɗin bai yi ƙasa sosai ba
