BTU stands for British Thermal Unit and is a measure of what?

BTU stands for British Thermal Unit and is a measure of what?

• A. BTUs measure electrical power
• B. BTUs measure volume
• C. BTUs measure airflow
• D. BTUs measure heating capacity

Answer: (D)

BTU is a unit of heat energy used to describe how much heat a system can deliver or remove. In heating and cooling, that amount of heat corresponds to the equipment’s heating capacity. So the term is about how much heat the device can produce or transfer, not about electrical power, volume, or airflow. For example, a furnace rated in BTU per hour shows how much heat it can deliver in one hour, i.e., its heating capacity.

BTU is a unit of heat energy used to describe how much heat a system can deliver or remove. In heating and cooling, that amount of heat corresponds to the equipment’s heating capacity. So the term is about how much heat the device can produce or transfer, not about electrical power, volume, or airflow. For example, a furnace rated in BTU per hour shows how much heat it can deliver in one hour, i.e., its heating capacity.