If your bills have been going up, dirty and clogged filters could be to blame. Your home is more dusty than before. If you notice that the filter is very discolored and covered with dust or hair, this is a very obvious sign that the filter needs to be replaced. It's very likely that the particles you find in this dirty filter will spread through the air in your home.
The best test to know if an oven filter is ready to be changed is to keep it in a bright light. If you can still see the light through the filter, then the air continues to enter through the filter. If you suspect that the filter is dirty enough to restrict airflow, replace it with a new one. The best way to know if you need to replace your filter is to take a look at it.
If it's gray and covered in dust and dirt, it's time to change. If the air filter is clogged, it can start to create pressure inside your HVAC system, which can force outside allergens into your home. The basic consensus among HVAC professionals is that you should replace your oven filter every 90 days or every three months. Once you have removed and disposed of the existing filter, all you have to do is attach the new one and make sure that the arrows match the part of the airflow.
Using two filters could allow you to easily fall into the jammed filter trap depending on the type of filter holders your system has. A clogged air filter will cause your HVAC system to work overtime because you have to use more force to push the same amount of air through the filter. Clean filters don't require as much energy from your HVAC system to function properly as a dirty air filter does. Doors and windows often openWindows and doors that are left open allow dust and outdoor air pollutants to build up in your home and add an extra layer of dirt to air filters.
The filters are designed to be positioned in a certain direction and collect dust and particles for a certain period of time and then thrown into the trash. Because your filter is responsible for filtering dust and dirt, if it's too full or clogged, your oven will take longer to do its job. Once the filter is full and dirty, it cannot prevent future allergens and particles from passing through the air. If the fan in your heater is on constantly, you will need to change the filter every month, having it turned on will sometimes be every two months and never having it turned on may be every three months.
Using a schedule such as changing oven filters every three months, regardless of how dirty the filter is, can waste time and money. By now you should be understanding the problems of changing the oven filter too soon instead of when it's too late and the HVAC system suffers a stroke. That same amount of airflow now moves much slower (and quieter) through a filter's ultimate dust collector.