The HVAC Installation Glossary: Terms Every Homeowner Should Know

When it comes to HVAC (Heating, Ventilation, and Air Conditioning) installation, understanding the terminology can be empowering. Whether you’re a new homeowner or looking to upgrade your HVAC system, knowing these essential terms will help you navigate the installation process with confidence. In this glossary, we’ll cover key HVAC installation terms every homeowner should know:

1. Air Handler:

Definition: An air handler is a central unit in an Hvac Installation system responsible for circulating conditioned air throughout the home. It contains a blower fan, heating or cooling elements, and a filter.

2. Condenser Unit:

Definition: The condenser unit is the outdoor component of a split-system air conditioner or heat pump. It releases heat absorbed from indoors into the outside air.

3. Ductwork:

Definition: Ductwork refers to the system of ducts or channels that transport heated or cooled air from the HVAC unit to various rooms in your home.

4. Load Calculation:

Definition: A load calculation is an assessment performed by HVAC professionals to determine the heating and cooling requirements of a building. It considers factors such as square footage, insulation, climate, and occupancy.

5. SEER (Seasonal Energy Efficiency Ratio):

Definition: SEER is a rating that measures the energy efficiency of air conditioners and heat pumps. It represents the cooling output divided by the energy input during a typical cooling season.

6. AFUE (Annual Fuel Utilization Efficiency):

Definition: AFUE is a rating used for furnaces and boilers, measuring the efficiency at which these systems convert fuel into heat over an entire heating season.

7. BTU (British Thermal Unit):

Definition: BTU is a unit of measurement used to quantify the heating or cooling capacity of an HVAC system. It represents the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

8. Zoning:

Definition: HVAC zoning involves dividing your home into separate zones, each with its thermostat and controlled independently. This allows for customized heating and cooling in different areas of your home.

9. Refrigerant:

Definition: Refrigerant is a chemical substance used in air conditioning and refrigeration systems to absorb and release heat.

10. Heat Exchanger:

Definition: A heat exchanger is a component in a furnace that transfers heat from the combustion process to the air that circulates through your home.

11. Programmable Thermostat:

Definition: A programmable thermostat allows you to set specific temperature schedules for different times of the day or week, helping you save energy.

12. Humidifier:

Definition: A humidifier is a device that adds moisture to the air, increasing indoor humidity levels. It can be integrated with your HVAC system to improve comfort and air quality.

13. Thermostat:

Definition: A thermostat is a control device that allows you to adjust and regulate the temperature of your HVAC system. Modern thermostats can be programmable or smart, offering advanced features and connectivity.

14. Air Filter:

Definition: An air filter is a component in your HVAC system that captures particles and allergens from the air, improving indoor air quality.

15. Heat Pump:

Definition: A heat pump is an HVAC system that provides both heating and cooling by transferring heat between the indoor and outdoor units.


Armed with this HVAC installation glossary, you’ll be better equipped to communicate with HVAC professionals, understand your system’s operation, and make informed decisions about your heating and cooling needs. Whether you’re discussing load calculations, SEER ratings, or zoning options, having a grasp of these terms will enable you to create a more comfortable and efficient home environment.

Top of Form

Leave a Comment