Anyone who knows what Texas summers are like understands the necessity of air conditioning in the state. In some places, people spend a lot of time polishing their luxury cars, while others devote their energy to cultivating weed-free lawns. In Texas, folks have been known to treasure their air conditioning units and give their HVAC systems pride of place among their material assets. It only makes sense that Texas homeowners would want to make sure the HVAC system’s ductwork is in tip-top shape at all times. So how can you keep your ductwork clean? Read on to learn more about how to limit the need for extra HVAC maintenance.
How HVAC Filters Help Your Home
HVAC air filters function to trap unwanted dust and dirt particles in the air. It is important for the prevention of dust buildup in your HVAC ductwork for a variety of reasons. Changing your air filters regularly ensures that the air in your home will stay clear of dust and dirt particles—without consistent replacement, your filters will be unable to trap new particles to prevent it from circulating through your home.
How Often Should You Change Your HVAC Filter?
One of the easiest ways to limit extra HVAC maintenance is to replace your air filter on a reliable schedule. Most experts agree that your HVAC air filter should be changed every 30 – 90 days, depending on how you use your system and your home environment. Homes with pets, allergies, or high dust levels typically need new filters closer to the 30–60 day range. Meanwhile standard homes without pets can often go up to 90 days before replacing the filter. Filters also vary by type and thickness, thicker, high‑efficiency filters may last longer. But checking them once a month and replacing them when clogged is the best rule of thumb to keep airflow smooth and reduce strain on your system.
Health Concerns From Dirty Filters
One concern is that residents are often sensitive to the buildup, especially if there are any particle traces from smoke (e.g. from cigarettes, cigars, or even candles) or dander from pets. The health of those who occupy the home is at stake: they could develop allergies or even asthma over time if those particles travel through the ductwork and into the ambient air.
Efficiency and Cost Impacts
Further, filters that are not replaced consistently cause HVAC system to become less efficient. This happens because the system expends more energy to circulate air through ducts that are partially blocked due to dust and dirt buildup on the filters. Reducing the amount of dust and dirt that collects by replacing air filters helps to reduce the amount that settles within HVAC ductwork. This helps keep air flowing more consistently and efficiently; more optimal air flow means less energy use, which in turn keeps higher air conditioning costs at bay.
Pest Problems in Ductwork
Pests can also be a concern for your HVAC system. They can cause damage within the system, but the main worry is infestation. Infestations by such pests as insects and rodents can develop rapidly because the pests are easily hidden in the ducts, which makes it easy to take this issue for granted. If an infestation does occur, it means that pests will leave shells and casings, as well as droppings within the air ducts. Some pests might even die and begin to decompose somewhere within the ductwork, resulting in unpleasant and possibly dangerous odors emanating through the premises. This serious health threat can be addressed in part by calling in a professional pest exterminator. Other things you can do include screening off HVAC air vents, keeping the area around outdoor air conditioning units free of debris and plant growth, and making sure your ductwork is sealed.
Addressing Mold and Moisture
Mold is a serious problem that should be addressed when it comes to your HVAC system as well. If you detect mold in or around your system, it could be a sign of a bigger problem. Mold growth can decrease indoor air quality immensely because mold can contaminate the air. Mold spores in excess can negatively impact existing allergies and respiratory conditions when circulated through the air, or even be the cause of those and other health problems. While a serious mold problem will require remediation by a professional mold removal specialist, there are a few things homeowners can do to help mitigate mold growth. One thing to do is to pay attention to the moisture around your HVAC system to manage humidity levels. Keeping your evaporator coil clean and adjusting fan/blower speed can help decrease the humidity. (Professional HVAC companies can help with this if you set up a regular maintenance schedule.)
Professional Assistance for Your HVAC Needs
The Coolest is your Austin-based HVAC service and installation company. The team of experienced technicians at The Coolest is ready to assist you with all your HVAC needs, from HVAC installation to maintenance. Contact The Coolest via their website or by phone at 512-468-6140.
FAQs:
Q. Do different HVAC filter types last longer than others?
Ans: Yes, basic filters (like 1‑inch panel filters) usually need changing every 30–60 days, while higher‑efficiency pleated or thicker filters can last up to 90 days or longer before replacement is needed. The type and quality of filter you choose influences how often it clogs and needs to be swapped.
Q. Can a filter’s MERV rating affect your HVAC system?
Ans: Yes, filters with higher MERV ratings capture smaller particles but can restrict airflow if your system isn’t designed for them. Always check your HVAC manufacturer’s guidelines before using high‑MERV filters, as restricted airflow can strain the system.
Q. Are there visual or performance signs a filter needs changing?
Ans: Yes, even before a set timeframe, you should change the filter if it appears gray or visibly clogged, if dust buildup inside the home increases, or if airflow seems weak. These signs mean the filter is no longer effectively trapping particles.
Q. Can forgetting to change the filter lead to costly repairs?
Ans: Yes, neglecting filter changes forces your HVAC system to work harder. This can shorten its lifespan, increase energy costs. This may lead to expensive repairs like motor burnout or coil issues. Regular filter changes are a simple way to avoid those extra costs.