11/04/2026
Heating season is coming!
So here’s your regular reminder to check your furnace filter.
Most standard 1-inch filters need changed around every 2 to 3 months, but there really isn’t a schedule that works for every home.
How often you need to change your filter depends on the type and size of your filter, your furnace and your home. Factors like having pets that shed can also mean you'll need to change your filter more often.
And don’t assume the highest MERV filter on the shelf is automatically the best one. If a filter gets too restrictive, it can actually make it harder for your HVAC system to move air.
We put together more on how often to change your furnace filter and what kind makes sense for your system below. At Watkins, we sell a variety of different filters and can help you choose the best one for your home or even upgrade you to a better filter setup if needed.
Learn how often to replace your furnace filter in Ohio. The different sizes and how it improves airflow, lowers bills, and extends your HVAC system's life.