HVAC (Heating, Ventilation, and Air Conditioning) is necessary in terms of comfortable living. It controls the temperature and maintains the quality of air in your house as it should be. HVAC filter replacement is one of the most essential, but the most neglected, tasks concerning HVAC maintenance. In this blog, we are going to explore the reason as to why HVAC filters matter, as well as tips on how to take care of the filters so that the system can perform effectively.
What is an HVAC Filter?
Your HVAC system has a part of the system that filters the dust, dirt, allergens, and other particles in the air as they travel through the system; this is known as the HVAC filter. These filters play a critical role in keeping your HVAC system operational and to ensure that the air you are inhaling in your home is safe and has no harmful particles. There are several types, sizes, and materials of filters, and they should be changed regularly so that your system can run efficiently.
Why is it Important to Change Your HVAC Filter?
Improved Air Quality
Unclean filters have the potential to lower the quality of air in your house. The congested filter, as time elapses, will have a hard time attracting pollutants like dust and pollen, pet dander, and smoke particles. This may result in poor indoor air quality that may worsen such respiratory diseases as asthma or allergies.
Better System Efficiency
Once the HVAC filter is clogged with debris, it limits the airflow. This causes your HVAC system to work harder to circulate air so that it consumes more energy. An uncontaminated filter allows freer circulation through its system, thus enabling it to operate efficiently.
Prolongs the Life of Your HVAC System
A clean filter assists your HVAC in running more efficiently to avoid unnecessary strain. This does not only save on energy bills, but it also extends the life of your system since it saves on the wear and tear of machine parts such as the blower motor and evaporator coil.
Reduced Maintenance Costs
Regularly replacing your HVAC filter will help you prevent an expensive repair. The system may overheat due to a clogged filter, which is costly because it may include frozen coils or a broken compressor. A simple way to prevent such problems is to change the filters on a regular basis.
How Often Should You Change Your HVAC Filter?
The rate at which you change your HVAC filter varies according to various factors that include the nature of the filter, the nature of the HVAC system, the nature of the environment, and your usage of the HVAC system.
The following are broad rules that can be used to determine the frequency with which you should change your HVAC filter:
Standard Fiberglass Filters
One of the most popular and the least expensive kinds of filters used in HVAC is the fiberglass filter. They are less effective, however, in capturing smaller particles than the higher end filters. In the case of an ordinary fiberglass filter, it should be changed after every 30 days.
Pleated Filters
Pleated filters are more effective compared to fiberglass filters and able to trap smaller particles such as dust and pollen. These filters generally have longer lifespans but it is generally advisable to change them after every 60 to 90 days. With a high efficiency pleated filter, you can probably last as long as 6 months before replacement.
High-Efficiency Filters (HEPA)
The gold standard of air filters is the HEPA (High-Efficiency Particulate Air) filters. They are made with the purpose of trapping smaller particles such as bacteria and viruses. They are very effective but are also prone to clogging easily. For HEPA filters, it is preferable to change the filter after every 6-12 months based on the usage and environment.
Reusable Filters
Other HVACs use reusable or washable filters. Although such filters may prove less expensive over time, cleaning them is required. With reusable filters, cleaning and replacing them after every 1 to 2 months is necessary, and also when they get worn and torn.
Homes with Pets or Smokers
The pets and smokers in your house might require you to change your HVAC filter frequently. A filthy filter may lead to the worsening of such symptoms of allergy and asthma, and pet dander and cigarette smoke can more rapidly clog a filter. Under such circumstances, you are advised to replace the filter after every 20-45 days.
Homes with Allergies or Dust Sensitivity
If members of your household are allergic or have asthma or any other respiratory illness, you should ensure your filter remains as clean as possible. Frequently replacing your filter, say after every 30 days, will also assist in making sure that you are filtering out allergens, and that the air is cleaner and fresher.
Environmental Factors
The climate and environment where reside also may influence the frequency of changing your filter. For example, houses in dusty or damp environments may need replacement of filters frequently.
Signs That You Need to Change Your HVAC Filter
Although it is advised that you change your HVAC filter regularly regardless of the current condition of the filter, it is always a good practice to observe indications that point to replacing your filter.
The following are some of the red flags to watch out:
Reduced Airflow
When you realize that there is weak airflow inside your vents, then it might be an indication that your filter is clogged. This will influence the comfort and efficiency of your home.
High Dust and Allergens
If you feel like there is more dust in the house or your allergies worsen, it might be that the filter is not capturing the particles as well as it needs to. This means that the filter is due to be changed.
Higher Energy Bills
When your utility bills grow higher for no apparent reason overnight, it is likely that your heating and air conditioning system is overworking because of a blocked filter. A clogged filter renders the system inefficient, making it consume more energy.
Frozen Coils
The system may get frozen as a result of a clogged filter. This is due to the constraining airflow that results in too cool coils. In case of ice accumulation on the coils, then it is time to change the filter.
System Short Cycling
Short cycling happens when your heating/cooling system is switched on and off. This may be due to an unclean filter which limits the circulation of air and can make the system unable to run effectively.
Tips for Maintaining Your HVAC Filter
Reminders: It is easy to forget when you have to change the filter. Remember to set a reminder or put a calendar note so that you do not go beyond the suggested replacement period.
Test the Filter Periodically: Although you might have a suspicion that you need to change the filter, have a quick look every month, to check your filter for dirt and debris. You can also prolong the life of your filter by cleaning it or changing it frequently.
Hire a Professional: You may not know how to change your filter or just make sure that your HVAC system is running at its best capacity, so it is worth hiring a professional HVAC technician to carry out regular maintenance.