Most furnace filters are designed to last for about three months, but depending on the type of filter you have and the conditions in your home, they may need to be replaced more or less often. Above 80% of the dirt in your home is brought in by you and your family daily. This means that many of the contaminants in your furnace filter come from inside your home, not outside.
Like most people, you probably don’t think about your furnace filters until it’s time to replace it. And that’s a big mistake because not replacing the furnace filter can have serious consequences. So if you’ve been procrastinating on this task, now is the time to get motivated.
Overheating
Overheating is one of the most common risks of not replacing your furnace filter. When filters become clogged, they restrict airflow and cause your furnace to work harder to circulate air. Overheating, damaging your furnace, and potentially starting a fire can lead to overheating. To avoid this, check your furnace filter monthly and replace it as needed.
Flame Rollout
One of the most common risks of not replacing your furnace filter is a condition called “flame rollout.” This occurs when the filter becomes so clogged that it restricts airflow to the point where the flame can no longer stay lit inside the furnace. If this happens, you’ll need to call a professional to come out and relight the pilot light for you. Because if you try to do it yourself, you could risk getting burned.
Short Cycling
Your furnace has a set cycle that it needs to go through to heat your home properly. This cycle includes turning on, running until the desired temperature is reached, and then shutting off again. Your furnace filter plays a vital role in this process, as it helps to distribute the heat throughout your home evenly.
If your furnace filter is clogged, it can cause the furnace to turn on and off more frequently than usual. This is known as short cycling, putting a lot of unnecessary strain on your furnace. Not only does this decrease the lifespan of your furnace, but it can also lead to higher energy bills.
Frozen Coils
Not replacing your furnace filter can cause your coils to freeze. This happens when the air circulates through the system and is unable to reach the coil, causing ice to build up and eventually blocking the airflow. This can lead to a number of serious problems, including reduced efficiency, increased energy costs, and potentially even damage to your furnace.
Aside from being a major inconvenience, a frozen coil can also be dangerous as it can cause the furnace to overheat and potentially catch fire.
If you don’t replace your furnace filter regularly, these contaminants can build up and clog the filter, making it less effective. A clogged filter will make your furnace work harder to circulate air, eventually leading to furnace damage. Therefore, make sure to inspect your furnace filter and change it as necessary regularly. It’s a small task that can save you a lot of money and headaches in the long run.