Three Problems Caused by Dirty HVAC Air Filters
Air filters are one of the most essential yet highly ignored HVAC parts. Whether it is the air conditioner, heat pump, or furnace, all require proper airflow for improved performance. Clogged and dirty air filters restrict airflow and are detrimental to the home's comfort, safety, indoor air quality, and the overall system's health and efficiency. The excessive dirt and debris build-up over time will make the heating and cooling system use more energy, resulting in high utility bills. They are also among the top reasons leading to an HVAC system failure. The simple DIY task of cleaning or replacing air filters can work wonders for the system's performance.
Here are the three major problems caused by dirty HVAC air filters and why their regular replacement should be every homeowner's priority:
Reduced airflow
A dirty or clogged air filter restricts the smooth circulation of air through the vents, leading to hot or cold spots throughout the home. The inadequate heating and cooling compromise the comfort as the HVAC system will not warm or cool the house at the desired levels. The restricted airflow causes the fan motor to work harder and burn down eventually. During winters, reduced airflow also causes the heat to build-up around the heat exchanger, causing it to crack. When not replaced on time by a professional HVAC repair and service contractor, it may result in system failure or the release of poisonous carbon monoxide gas.
Increased energy bills
When the air filters are clogged, the HVAC system struggles to heat or cool the house. The dirtier an air filter is, the higher the energy system used to ensure proper air circulation throughout the home and maintain the desired comfort levels. A sudden and unexplained rise in the home's energy bills can be attributed to dirty air filters. Regularly cleaning or replacing the air filters ensures easy air circulation, causing the system to use less energy to operate, resulting in savings on the monthly energy bills.
Poor indoor air quality
A dirty air filter compromises the indoor air quality. The dust, dirt, and allergens making their way into the home via the air ducts can cause symptoms like headache, fatigue and put you and the family at the risk of airborne-illnesses and other serious respiratory issues. These contaminants are also known to trigger asthma and worsen allergy symptoms.
Besides the problems mentioned above, a dirty HVAC filter can also lead to frozen evaporator coils, dirty ducts, and complete system breakdown.
How often should you clean or replace the HVAC air filters?
As a rule of thumb, an HVAC filter should be cleaned or replaced every month during peak summers and winters, when the system sees heavy usage. During the off-times, consider changing it every 90 days. However, the frequency may vary depending on the household size, the number of pets in the house, the type of air filter used, and if any resident suffers from allergies.
The condition of air filters significantly impacts the heating and cooling system's performance and the home's comfort. Neglecting the dirty filters for long can cost homeowners dearly. Ensure the system's periodic maintenance by an HVAC repair and service contractor, and set a reminder to change filters regularly to prevent a problem.
Improve your indoor air quality with air duct cleaning, dryer vent cleaning, REME HALO Whole Home In-duct air purifier, and AprilAire air filters from Evenflow Home Services. Call (210) 941-3503 to learn more.
