At what temperature does water boil?

Water boils at a temperature of 212°F at sea level under standard atmospheric pressure. This boiling point is a fundamental property of water and is crucial for various applications in plumbing, cooking, and other scientific contexts. Understanding the boiling point is essential for master plumbers, as it impacts the use of water in heating systems and the safe handling of hot water during installations and repairs.

The temperature at which water boils can vary with changes in pressure; for example, at higher altitudes where atmospheric pressure is lower, water boils at temperatures below 212°F. However, under normal conditions at sea level, 212°F is the universally accepted boiling point. This knowledge serves as a foundational concept in thermal dynamics and fluid mechanics, which are key aspects of plumbing practices.