What is a closed metal container that heats water to produce steam or hot water called?

What is a closed metal container that heats water to produce steam or hot water called?

• A. Boiler
• B. Boiler Tank
• C. Pressure Vessel
• D. Water Heater

Answer: (A)

In heating and process systems, a closed metal container that heats water to produce steam or hot water is called a boiler. Boilers are designed to transfer heat into the water inside a sealed vessel, raising it to either steam at a chosen pressure or hot water for distribution through a building’s heating system. This distinguishes it from a water heater, which mainly provides domestic hot water at relatively low pressure and temperature. While a boiler is a type of pressure vessel—since it contains steam under pressure—the term “pressure vessel” is more general and can refer to containers used for many purposes, not specifically for generating steam for heating. The boiler’s primary role is to generate usable thermal energy through steam or hot water, making it the best descriptor for this closed heating device.

In heating and process systems, a closed metal container that heats water to produce steam or hot water is called a boiler. Boilers are designed to transfer heat into the water inside a sealed vessel, raising it to either steam at a chosen pressure or hot water for distribution through a building’s heating system. This distinguishes it from a water heater, which mainly provides domestic hot water at relatively low pressure and temperature. While a boiler is a type of pressure vessel—since it contains steam under pressure—the term “pressure vessel” is more general and can refer to containers used for many purposes, not specifically for generating steam for heating. The boiler’s primary role is to generate usable thermal energy through steam or hot water, making it the best descriptor for this closed heating device.