HVAC Industry Terms

In the world of HVAC (Heating, Ventilation, and Air Conditioning), there's a plethora of industry-specific terms that can seem like a foreign language to the uninitiated. Understanding these HVAC industry terms is crucial, whether you're a homeowner looking to make informed decisions about your HVAC system or a budding technician aiming to excel in the field. In this blog post, we'll break down some of the most important HVAC terms you need to know, making your journey through the world of heating and cooling a breeze.

  1. HVAC (Heating, Ventilation, and Air Conditioning)

Let's start with the basics. HVAC stands for Heating, Ventilation, and Air Conditioning. It encompasses the systems and technologies responsible for regulating indoor temperature, ensuring proper air circulation, and maintaining air quality within buildings.

  1. BTU (British Thermal Unit)

BTU is a unit of measurement used to quantify the heating or cooling capacity of HVAC systems. It represents the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. Understanding BTU helps you choose the right-sized HVAC equipment for your space.

  1. SEER (Seasonal Energy Efficiency Ratio)

SEER measures the efficiency of an air conditioning system. The higher the SEER rating, the more energy-efficient the system is. Energy-efficient systems consume less electricity and help you save on utility bills while reducing your carbon footprint.

  1. AFUE (Annual Fuel Utilization Efficiency)

AFUE is a rating used for furnaces and boilers. It measures the efficiency of combustion heating equipment by expressing the percentage of fuel that is converted into usable heat. A higher AFUE indicates greater energy efficiency.

  1. Ductwork

Ductwork is a network of pipes or channels used to distribute heated or cooled air throughout a building. Well-designed and properly maintained ductwork is essential for efficient HVAC system performance.

  1. Thermostat

The thermostat is a control device that allows you to set and regulate the temperature in your home. Modern thermostats often come with programmable features and smart technology to optimize comfort and energy savings.

  1. HVAC Load Calculation

This refers to the process of determining the heating and cooling requirements of a building. Load calculations take into account factors like insulation, climate, and the size and layout of the space to ensure your HVAC system is appropriately sized.

  1. Refrigerant

Refrigerant is the substance used in air conditioning and refrigeration systems to absorb and release heat. Common refrigerants include R-22 and R-410A. It's essential to be aware of refrigerant types and their environmental impacts due to recent regulatory changes.

  1. Heat Pump

A heat pump is an HVAC system that can provide both heating and cooling by transferring heat between the indoors and outdoors. They are energy-efficient alternatives to traditional heating and cooling systems.

  1. IAQ (Indoor Air Quality)

IAQ refers to the quality of air inside a building. Maintaining good indoor air quality is crucial for the health and comfort of occupants. HVAC systems can play a significant role in improving IAQ through proper filtration and ventilation.


Navigating the HVAC industry becomes significantly easier when you have a grasp of these essential terms. Whether you're a homeowner striving to make informed decisions or an aspiring HVAC technician looking to excel in the field, these HVAC industry terms are your foundation for success. By understanding them, you'll be better equipped to choose the right HVAC system, maintain it effectively, and ensure the comfort and well-being of those in your space. Stay tuned for more HVAC insights and tips to make your journey in the world of heating and cooling a breeze.

Here at Kennon Heating & Air Conditioning we want you to enjoy your home to the fullest. That starts with making sure that the air in your home is clean and at the perfect temperature for you. If we can help in any way, please contact us via email or phone (678) 251-9776. Stay cool, stay cozy.