A dirty air filter can significantly impact your furnace's efficiency and lifespan. When the filter is clogged, it restricts airflow, leading to overheating and potential breakdowns. Regular maintenance is crucial, as neglecting this simple task can result in costly repairs and increased energy bills. Factors like filter type, replacement frequency, and your home's dust levels all play a role in maintaining optimal furnace performance. Curious about the best practices for filter maintenance or how to choose the right filter for your system? Ask Improvi.ai for personalized guidance!