Which term refers to the measurement of gas flow in BTU?

The term that refers to the measurement of gas flow in BTU is known as Heating Value. This concept represents the amount of energy produced when a certain quantity of gas is combusted. Specifically, it quantifies the energy content of the gas and is measured in British Thermal Units (BTU), which is a practical unit often used in the gas industry to determine energy output.

Heating Value is essential for understanding how much energy can be derived from a specific volume of gas, thus enabling professionals to calculate efficiencies and make informed decisions about gas usage in various applications. Recognizing the heating value helps technicians ensure that appliances are operating effectively and that systems are sized appropriately for their heating demands.

The other terms relate to different aspects of gas or energy measurement but do not specifically focus on the thermal energy content expressed in BTU in the way Heating Value does.