BTU stands for what unit of measure?

BTU stands for British Thermal Unit, which is a traditional unit of heat used to quantify the amount of thermal energy. It is essential in various applications, particularly in heating, ventilation, and air conditioning (HVAC), as well as in energy production. One BTU is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at a constant pressure.

In the context of building performance and energy efficiency, understanding BTUs is crucial for assessing energy consumption and determining the heating or cooling requirements of spaces. The unit is pivotal when it comes to comparing the energy efficiency of heating and cooling equipment. Since BTUs help to measure energy output and input effectively, they play a key role in the design and analysis of energy systems within buildings.

The other options do not represent any recognized units of measure in relation to thermal energy, which is why they are not correct. The British Thermal Unit is the standardized term used in industry and academia.