Ko te Thermostat he momo taputapu whakahaere i te pāmahana aunoa, ko te tikanga kei roto he waahanga whakamaarama, ma te whakawhanui, ki te whakaheke ranei ki te huri me te whakakore i te rere o te wai whakamatao, ara, te whakatika aunoa i te wai ki roto i te radiator kia rite ki te pāmahana o te whakamahana. wai, huri i te awhe tohanga o te wai whakamatao, hei whakatika i te kaha tohanga wera o te punaha whakamahana.
Ko te whakamaarama miihini matua he momo wax-momo, e whakahaerea ana e te paraffini o roto na roto i te kaupapa o te roha wera me te whakaheke makariri hei whakahaere i te tohanga whakamatao. Ina he iti iho te pāmahana whakamahana i te uara kua tohua, ka totoka te paraffin paraffini i roto i te tinana whakamaarama whakamaarama, katahi te reera whakamatao i raro i te mahi a te puna ki te kati i te hongere i waenga i te miihini me te radiator, te whakamahana ma te papu wai ki hoki ki te miihini, te miihini iti te huringa. Ka tae te pāmahana o te whakamatao ki te uara kua tohua, ka timata te paraffin ki te ngohe, ka huri haere hei wai, ka piki te rōrahi me te pēhi i te ngongo rapa kia mimiti. I taua wa ano, ka mimiti haere te ngongo rapa me te pana whakarunga ki runga i te rakau pana. He pana whakararo te toka pana ki runga i te takirere kia tuwhera ai te takirere. I tenei wa, ka rere te whakamatao i roto i te radiator me te reera whakamahana, ka hoki ki te miihini ma te papu wai mo te tohanga nui. Ko te nuinga o te thermostat kua whakaritea i roto i te putorino putanga wai o te upoko rango, he painga o te hanganga ngawari me te ngawari ki te tuku i nga mirumiru i roto i te punaha whakamatao; Ko te ngoikoretanga ko te whakatuwhera me te kati o te thermostat i te wa e mahi ana, ka puta he ahuatanga oscillation.
Ina he iti te pāmahana whakahaere o te miihini (i raro iho i te 70°C), ka tutakina aunoa e te thermostat te ara e ahu atu ana ki te radiator, ka whakatuwhera i te ara e ahu atu ana ki te papu wai. Ko te wai whakamatao e rere mai ana i te koti wai ka uru ki roto i te papu wai ma te ngongo, ka tukuna ki te koti wai e te papu wai mo te tohanga. Na te mea karekau te wai whakamatao e memeha e te radiator, ka tere te piki o te pāmahana mahi o te miihini. Ina he tiketike te pāmahana mahi o te miihini (i runga ake i te 80°C), ka kati aunoa te whakamaarama i te ara e ahu atu ana ki te papu wai, ka whakatuwhera i te ara e ahu atu ana ki te radiator. Ko te wai whakamatao e rere mai ana i te koti wai ka whakamataohia e te radiator ka tukuna ki te koti wai e te papu wai, ka pai ake te kaha whakamahana me te aukati i te wera o te miihini. Ka kiia tenei ara huringa ko te huringa nui. Ina kei waenganui i te 70 °C me te 80 °C te pāmahana whakahaere o te miihini, ka noho tahi nga huringa nui me te iti i te wa ano, ara, tetahi waahanga o te wai whakamatao mo te huringa nui, me tetahi atu waahanga o te wai whakamatao mo te huringa iti.
Ko te mahi a te whakamahana waka he kati i te motuka i mua i te korenga o te pāmahana ki te pāmahana noa. I tenei wa, ka whakahokia mai te wai whakamatao o te miihini ki te miihini e te papu wai, a ka mahia te iti o te tohanga o te miihini kia tere te mahana o te miihini. Ka nui ake te pāmahana ka taea te whakatuwhera, kia pai ai te whakamahana i te wai whakamatao i roto i te kopae radiator tank katoa mo te tohanga nui, kia tere ai te wera.