If you are like most people, you aren’t thinking about your HVAC system until it stops functioning the way it should. (Heating Ventilation & Air Conditioning)
Air filters are inserted into a specific place in the HVAC systems and act as a barrier to prevent contaminants and other particles from circulating in the air, or from reaching sensitive parts of the system. Some of the common things that filters block are dust, pollen, lint, mold, hair, animal fur, bacteria, and more.
HOW OFTEN SHOULD I CHANGE MY FILTER?
Depending on the type of air filter you are using, you will need to follow different schedules to ensure that the filter is always functioning for optimal performance. Most manufacturers recommend that basic filters are changed every 30 to 60 days, but there are other circumstances that could affect that schedule.
- A filter in a regular home with no pets should be changed every 90 days
- If your home has a single pet, the filter should be changed every 60 days
- For multiple pets, or if anyone in your home suffers from allergies, you’ll want to change the filter anywhere between 20 to 45 days
- People in single-occupant homes with no pets, or those who own vacation homes that don’t get much use, can usually wait for 6 to 12 months before changing their filter
WHAT HAPPENS WHEN I DON’T CHANGE MY FILTER?
1. Clogging– When air filters are not consistently changed, they get clogged by the buildup of particles and contaminants that stick to the filter. While the filter is designed to accommodate these minuscule items, the buildup creates an almost impenetrable barrier so that the air cannot completely flow through, which can ultimately cause multiple problems for the entire HVAC system.
2. Higher Energy Bills– When the filter becomes clogged, air cannot easily flow through the system. This causes the whole system to have to work harder to distribute heat or air where it is needed, which increases your utility bills since the air is running for longer.
3. Poor Temperature– Since clogged air filters make the system strain to create airflow, warm or cool air cannot adequately go where it is needed. This means that some rooms could be too cold during the winter or too hot in the summer.
4. Health Concerns-If the air filter is clogged and cannot trap contaminants as it did before, those things can end up back in the air that everyone in your home is breathing. Immediate issues could include headaches, itchy eyes or throat, and dizziness. If the air filters are not changed and the issues continue, the long-term effects could be respiratory diseases, heart disease, or cancer.
5. Furnace Failures– As the system is working harder to get around clogged air filters, it can cause the entire system to overwork and eventually break. If this happens, you’ll need to replace the entire system, which can cost anywhere from $4,000 to $12,000. Air filters usually cost less than $40, so they are easy to replace frequently compared to replacing the entire system.
6. Clamped Up Coils– Evaporative coils, which help remove heat from the air to keep your home cool, can freeze up if they are overworked. With a clogged air filter, the air won’t flow over the coils correctly, which makes them stop working and leads to total system failure. Again, the price to fix this issue is greater than simply purchasing a new air filter every few months. Protect your HVAC system and your wallet by replacing the air filters on a regular schedule.
WHAT DO I DO?
If you haven’t changed the air filters in your home lately, your next step should be to figure out which filters you need and replace them as soon as possible. If you find that the old filters look like nothing, not even air, could ever pass through them, it’s time to contact an HVAC professional. They can visit your house to inspect the system and resolve any issues caused by the clogged filters, thus preventing further problems in the future.
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