HVAC GUIDE FOR HOMEOWNERS: MAINTENANCE CARE & TIPS
When maintaining your HVAC, generalized advice won’t get you the most bang for your buck. Tennessee’s normally temperate climate still sees spikes in humidity, with frequent storms and heat waves.
Your HVAC not only needs to keep your home warm or cool, but it also needs to keep your air clean and energy bills low. We’ve put together this Tennessee HVAC guide for homeowners in Tennessee who want to care for and extend their HVAC system life as long as possible.
HVAC LEARNING GUIDE: HOW HUMIDITY AFFECTS YOUR AC SYSTEM
How does humidity affect air conditioning? Humidity is one of the most common reasons why Tennessee homeowners still don’t feel cool in their homes. While dry air gets chilly quickly, higher moisture levels trap heat and contribute to a muggy, sticky sensation.
If you have an older HVAC system with poor airflow, that humid air builds up over time. Sooner or later, you’ll wonder if your cooling system is working at all!
Tennessee homeowners should service their HVAC at least once per year to catch common problems like poor airflow or malfunctioning thermostats. Twice a year is ideal to prepare for the hot and cold seasons. Before you call for an HVAC repair job, though, consider how the state’s climate and your home’s design affect your comfort levels.
Seasonal HVAC Maintenance Guide
Season | What to Check | Why It Matters in Tennessee | When to Call a Professional |
|---|---|---|---|
Spring | Replace the filter, clear debris around the outdoor unit, and test cooling before peak heat. Schedule cooling maintenance. | Humidity and early warm spells can make small airflow problems feel bigger fast. | Call if the system runs constantly, blows warm air, or leaves rooms muggy. |
Summer | Watch indoor humidity, listen for short cycling, and keep vents open and unblocked. | Long hot stretches can push older equipment harder and raise comfort concerns. | Call if you notice weak airflow, odd smells, or sudden comfort changes. |
Fall | Schedule heating maintenance, test the thermostat, and check exposed weatherstripping. | A mild fall is the best time to prepare before cold snaps arrive. | Call if heat is uneven, the system makes new noises, or your furnace has not been serviced. |
Winter | Keep returns clear, change filters on schedule, and avoid fully wrapping the outdoor AC unit. | Cold snaps, rain, and debris can still affect outdoor and indoor equipment. | Call if the system will not heat, keeps shutting off, or has a burning smell after startup. |
THE TENNESSEE WEATHERIZATION GAP AND HOW IT AFFECTS YOUR HVAC
Believe it or not, improving your HVAC’s performance actually starts outside the HVAC system. Even the newest and most energy-efficient unit will struggle to change your home’s temperature if you have airflow or humidity issues.
Let’s start off this HVAC guide with ways you can start improving your system’s performance.
WEATHERSTRIPPING
Your hard-earned money can slip right through the cracks in old doors and windows. Weatherstripping uses waterproof material, such as rubber or plastic, to help prevent air leaks without becoming moldy.
VENTILATION
While opening your windows on a muggy day seems counterproductive, good ventilation keeps indoor humidity under control. The airflow from open windows circulates moist air so it doesn’t build up in a single room.
DUCT SEALING
Leaky ducts are one of the biggest culprits of an HVAC system that can’t heat or cool properly. While your ductwork is important to move air throughout the house, tiny cracks can leak air right back outside and waste your money.
Weatherization Quick Guide
Home Comfort Gap | What It Can Feel Like | First Step to Consider |
|---|---|---|
Worn weatherstripping | Rooms feel drafty, humid air sneaks in, or doors and windows don’t seal well. | Check exterior doors and older windows for visible gaps or brittle seals. |
Poor ventilation | Some rooms feel stale, damp, or warmer than the thermostat setting suggests. | Look for blocked vents, closed interior doors, or rooms that lack fresh airflow. |
Leaky ductwork | One area never feels comfortable, or conditioned air seems to disappear before reaching rooms. | Ask a professional to inspect duct connections before assuming the HVAC system is the only issue. |
WHAT TENNESSEE HOMEOWNERS SHOULD WATCH FOR
You may already have a few tricks up your sleeve for the Tennessee winter, like putting a tarp over the top of your AC in the winter. Upgrade your personal HVAC guide for homeowners by considering these extra details.
HEAT WAVES
You don’t want to be caught in the middle of a heat wave with a failing HVAC. Tennessee is seeing a gradual increase in hot weather, including a recent record-setting all-time high temperature in Nashville.
STORMS
Preparing your HVAC for spring and summer will be a little tougher in the future. The past few decades have also seen a mixture of storms, wildfires, cyclones, and flooding (and not all of them are just in the winter!).
These storms not only encourage you to turn your HVAC on to stay warm, they can damage your outdoor units with falling debris.
HVAC STRAIN
Old age is enough to make your HVAC struggle to work well. Many homeowners try to make their systems last for decades, but in actuality, you may need to replace your system every eight to 10 years.
Older HVAC systems have worn-out parts and poor energy-efficiency compared to new, modern models. They can take longer to cool, shut off more often, and gradually waste your money with constant repairs.
Do you have pets? Check out our guide on handling airborne allergens like dander and extra dirt.
ALLERGIES, DUST, AND INDOOR AIR QUALITY: WHAT YOUR HVAC PROTECTS AGAINST
Can your HVAC help with allergies? Yes! Your heating and cooling system comes with filters to trap indoor contaminants before they get too high. Over time, your filters become dirty with common pollutants like:
Dust
Dirt
Dander
Pollen
Filters can even trap incredibly small airborne particles like bacteria, viruses, and mold spores. A dirty filter won’t be able to trap as much, leaving more muck in your indoor air that can aggravate your sinuses or worsen asthma symptoms.
Should you seal ducts before replacing an HVAC? We highly recommend it so you don’t end up losing valuable money or comfort on a brand new installation. Sealing ducts also improves your indoor air quality by reducing the amount of outdoor contaminants getting inside, like more pollen or smog.
REPAIR, REPLACE, OR UPGRADE? YOUR DECISION GUIDE
A new HVAC guide wouldn’t be complete without narrowing down your next step. Should you repair, replace, or upgrade your HVAC system?
You should repair your system if:
Your HVAC system is only a few years old and normally works well
You enjoy your current features and home upgrades
You haven’t noticed signs of serious problems like foul odors or complete shutdowns
You should replace your system if:
Your HVAC system is at least eight years old
You have to call for frequent repair jobs every year or so
You want to enjoy the latest energy-efficient designs or digital tools
You should upgrade your home if:
Your HVAC works decently, but you have old ductwork or poor ventilation
You have a newer model that’s compatible with additions like smart thermostats
You haven’t upgraded your home in five years or more
If your HVAC isn’t working quite right, it’s worth troubleshooting minor issues yourself, such as swapping out a dirty filter or fixing the wrong thermostat setting. If you’re dealing with more serious issues like strange odors or short cycling, though, you need to call a professional.
Repair, Replace, or Upgrade Decision Chart
Decision | Usually Makes Sense When | What to Do Next |
|---|---|---|
Repair | Your HVAC system is only a few years old, usually works well, and is not showing serious signs like foul odors, electrical issues, or full shutdowns. | Handle simple checks like the filter and thermostat first. If the issue continues, schedule HVAC repair. |
Replace | Your HVAC system is at least eight years old, needs frequent repairs, or no longer keeps your home comfortable during humid Tennessee summers or winters. | Ask for an in-home inspection so you can compare comfort, efficiency, and long-term repair concerns. |
Upgrade | Your HVAC works decently, but old ductwork, poor ventilation, weak insulation, or limited controls are holding comfort back. | Look at duct sealing, smart thermostats, air cleaners, attic improvements, or other upgrades that fit your current system. |
If you need to look into HVAC upgrades, smart thermostats and air cleaners go a long way toward giving you more control over your home’s comfort.
Still not sure which option to choose after reading this HVAC homeowners guide? Make an appointment with one of our technicians and for in-home inspection that narrows down your best option.
UPGRADE YOUR HOME WITH CONWAY SERVICES
Tennessee’s climate is going to get hotter, wetter, and stormier from here. Stay prepared by fixing up your HVAC so it can hold strong to all the temperature and weather changes.
Conway Services is a family-owned business that’s been serving the Mid-South area since 1990. We help homeowners stay ahead of the curve with local expertise and a wide variety of heating, cooling, plumbing, and air quality services. With our Pro Service Plan, you can save even more money on annual maintenance.
Now that you’re done with our HVAC beginner’s guide, reach out to us to get an in-home inspection. You’ll be amazed by all the improvements that will make your home more energy-efficient and prepared for the state’s changing climate!