Thermostat is a device for maintaining a static (constant) temperature, as its name implies. There are thermostats of different designs in many devices and mechanisms, from water heaters to refrigerators. There is also a thermostat in a car's internal combustion engine (liquid-cooled, of course). In a car, the thermostat regulates the temperature of the coolant (antifreeze): it accelerates the warm-up of a cold engine and provides heat removal from the hot one. Therefore, the engine works more efficiently and more comfortably for the driver, especially in winter - without a thermostat, the stove would usually blew cold air.

1. GENESIS Coupe
2. GENESIS Coupe (BK)
3. ROHENS Coupe
4. SONATA V (NF)
5. SONATA V Saloon (NF)
6. SONICA V (NF)
7. EMBERA V (NF)
8. NF V (NF)
9. MAGENTIS (MG)
10. MAGENTIS Saloon (MG)
11. OPTIMA (MG)
12. LOTZE (MG)
13. LOTZE / OPTIMA (MG)
14. CARENS III MPV (UN)
15. RONDO III MPV (UN)
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The principle of the thermostat work

The classic MEAT & DORIA brand Thermostat, coolant is a movable valve that moves due to a change in the external environment - heating or cooling of antifreeze. The thermostat is made of a thermoelement filled with a substance resembling wax in structure - ceresin, with the addition of copper powder, graphite or aluminum for better thermal conductivity. At a certain temperature of the antifreeze, ceresin expands, opening the thermostat valve. When the motor cools down, ceresin contracts and the thermostat closes again.