As a homeowner or business owner, ensuring that your heating, ventilation, and air conditioning system is functioning at its best is essential. HVAC systems play a vital role in maintaining a comfortable indoor environment, and keeping them in good condition is necessary for optimal performance.

At Keith Key Heating & Air, we understand the importance of having a well-functioning HVAC system, and we strive to provide the best HVAC service in Midway, FL, and the surrounding areas. In this article, we discuss ten important aspects of an HVAC system that you should be aware of as a homeowner or business owner.

Efficiency Rating

Efficiency is one of the most important aspects of an HVAC system. Inefficient systems can waste energy, leading to higher energy bills and wear and tear. When selecting an HVAC system, homeowners should choose one with high Seasonal Energy Efficiency Ratio (SEER) and Annual Fuel Utilization Efficiency (AFUE) ratings, which indicate how efficiently the system converts energy into heating or cooling.

Proper Sizing

It’s essential to select the correct size when purchasing a heating and air conditioning system. An experienced HVAC contractor in Midway, FL, will properly size your unit according to the specific requirements of your home, including insulation levels and climate conditions. A system that is too large will cost more to install and consume more energy, leading to higher energy bills. Conversely, a system that is too small will have to work harder to maintain a comfortable temperature, leading to more frequent repairs and replacements.

Air Filters

The air filters are also essential for ensuring good indoor air quality. The filters remove airborne particles and contaminants from the air, but if they become too dirty, they can restrict airflow and reduce the efficiency of the system. Homeowners should change their air filters every few months and more frequently if pets or someone in the home has allergies. They help to remove dust, dirt, and other contaminants from the air, improving indoor air quality.


The thermostat is the control unit of your HVAC system. A programmable thermostat can help you save money on your energy bills by allowing you to set different temperatures throughout the day, depending on your schedule. Smart thermostats are the latest advancement in HVAC technology, allowing homeowners and business owners to control their heating and cooling systems remotely. It can be connected to an internet-enabled device, such as a smartphone or tablet, allowing users to remotely adjust their home’s temperature from anywhere.


The ductwork is a vital component of an HVAC system. Ductwork carries conditioned air from the heating and air conditioning system into different rooms throughout a home. If the ductwork is improperly sized or installed, it can reduce the efficiency of the system and lead to higher energy bills. Homeowners should ensure the ductwork is installed correctly and have their HVAC technician periodically inspect and clean the ducts to maintain good indoor air quality.


The refrigerant is the substance that absorbs heat from indoor air and releases it outside during the cooling process. The proper amount of refrigerant is essential to the efficient operation of the system, and homeowners should have their HVAC contractor check the refrigerant levels and inspect for leaks during regular maintenance visits. Older systems may use refrigerants that harm the environment, such as R-22. If your system uses an older refrigerant, consider upgrading to a newer, more environmentally-friendly option, such as R-410A.


Zoning is essential for maintaining comfortable temperatures throughout a home or building. Installing a zoning system can help homeowners save energy by allowing them to target specific areas of their homes. This can be done by using multiple thermostats or zone dampers connected to the ductwork. These thermostats or dampers control the airflow in different zones of the home, allowing users to only heat or cool specific areas as needed.

Humidity Control

Humidity control is an essential aspect of an HVAC system. High humidity can make the air feel warmer and lead to mold growth, while low humidity can cause dry skin, irritation, and damage to wood fixtures in a home. When purchasing and installing an HVAC system, it is vital to consider its humidification and dehumidification capabilities to ensure adequate humidity control is provided throughout the year. Humidity can have a significant impact on comfort inside a home or building, as well as on the integrity of furniture and fixtures.


Airflow is essential in an HVAC system. If the air is not moving correctly, it can cause an imbalance in temperatures and lead to higher energy bills. It is essential to ensure that their ducts are accurately sized and installed and that there are no blockages or obstructions to ensure good airflow throughout the home. Poor airflow can lead to hot and cold spots, reduced efficiency, and higher energy bills.

HVAC systems are important in keeping the indoor environment comfortable throughout the year. Properly maintaining your HVAC system is essential for efficient operation and improved indoor air quality. Routine maintenance and inspections can help identify any issues before they lead to costly repairs. Homeowners should ensure their HVAC system runs efficiently by scheduling an HVAC Contractor in Sopchoppy, FL, with a qualified technician.

Let Keith Key Heating & Air Help You

Keith Key Heating & Air is a trusted HVAC company with years of experience serving homeowners in Tallahassee, FL, and the surrounding areas. Our team of skilled technicians can help you with everything from system installation and replacement to maintenance and repair.

Whether you require air conditioner repair in Tallahassee, FL, or a new furnace installation, we have the expertise and experience to get the job done right. We use only the highest-quality equipment and materials to ensure that your HVAC system operates efficiently and effectively, helping you stay comfortable all year round.

If you want to learn more about our HVAC services or would like to schedule a consultation with one of our experts, please don’t hesitate to get in touch with us today to learn how we can help you with your HVAC needs.