above 212F or 100C. -Dave! Yognaut
The function of a gas water heater thermostat is to control the temperature of the water in the heater. It does this by sensing the temperature of the water and adjusting the gas flow to the burner to heat the water to the desired temperature.
At high temperature the gas stage of H2O is steam and at low temperature it is water vapour
The boiling point is the temperature at which water turns into a gas.
100C or 212F. It is the boiling point of water, where water turns from a liquid into a gas.
When water is boiling, the temperature remains constant, as the energy it is absorbing is being used to change the liquid water into water vapor.
Water will become a gas at approximately that temperature (the temperature may vary, depending mainly on the pressure).
The process of transforming water to gas in room temperature is evaporation. Some fraction of water molecules obtain enough energy to change into vapor.
100 oC
To change liquid water into a solid, you need to lower the temperature below 0 degrees Celsius to freeze it. To change liquid water into a gas, you need to raise the temperature above 100 degrees Celsius to evaporate it.
The gas hot water heater control valve regulates the flow of gas in the system to control the temperature of the water. It opens and closes to allow more or less gas to enter the burner, which in turn heats the water to the desired temperature.
It is increasing in temperature. When you put a pot of water over a lit stove, it evaporates into its gas form, water vapor, which can also be called steam.
Water is in the gas phase at 150 degrees Celsius, known as steam or water vapor.