What is an important maintenance task for ensuring HVAC efficiency?

Checking and replacing air filters is a critical maintenance task for ensuring HVAC efficiency because clean air filters directly impact the system's airflow and overall performance. When air filters become dirty or clogged, they restrict airflow, which can cause the HVAC system to work harder to maintain the desired temperature. This increased workload can lead to higher energy consumption, increased wear and tear on components, and potentially costly repairs over time.

By regularly checking and replacing air filters, homeowners can help maintain optimal airflow, improve indoor air quality, and enhance the overall efficiency of the HVAC system. It is widely recommended that air filters be checked monthly and replaced at least every three months, or more frequently in environments with higher dust or allergen levels. This simple task is one of the most effective ways to keep HVAC systems running efficiently.