What is a common tool used to measure temperature in HVAC systems?

In HVAC systems, a thermometer is commonly used to measure temperature because it is specifically designed for that purpose. It provides accurate readings of temperature in various locations within a system, which is crucial for monitoring and controlling heating and cooling processes. This helps ensure that the environment maintains the desired thermal comfort levels. By understanding the temperature at various points, technicians can diagnose issues, optimize system performance, and ensure that temperature settings align with occupancy needs and energy efficiency goals.

The other tools mentioned have different functions: a barometer measures atmospheric pressure, an anemometer gauges wind speed and airflow, and a calorimeter quantifies the heat transfer associated with chemical reactions or physical changes but does not provide direct temperature readings relevant to HVAC systems.