Increased energy consumption: A clogged air filter can restrict airflow through the HVAC system, making it work harder to circulate the same amount of air. This puts extra strain on the motor and fan, leading to increased energy consumption. The harder your HVAC system has to work, the more energy it will consume, resulting in higher electric bills.
Reduced efficiency: A dirty air filter can reduce the efficiency of your HVAC system by blocking airflow and causing it to work at a lower capacity. This can lead to longer cooling or heating cycles, resulting in higher energy usage and increased electricity costs.
Overheating: A clogged air filter can cause the evaporator coils in your air conditioner to become blocked, which can lead to overheating. This can put additional strain on the system, causing it to work harder and consume more energy. In severe cases, overheating can even lead to damage to the HVAC system, resulting in costly repairs.
Reduced lifespan of HVAC system: Dirty air filters can shorten the lifespan of your HVAC system by causing it to work harder and experience premature wear and tear. The excess strain on the motor, fan, and other components can lead to breakdowns and expensive repairs. Regular cleaning or replacement of air filters can help extend the life of your HVAC system, saving you money in the long run.
To avoid these issues and minimize the impact of air filters on your electric bill, it's essential to follow the manufacturer's recommendations for regular cleaning or replacement of your air filters. Generally, it's a good practice to check your air filters once a month and replace them every two to three months, depending on the type and usage. By keeping your air filters clean, you can ensure good air quality, efficient HVAC system operation, and reduced energy costs.