It is recommended to change your 16x25x1 furnace filter every 30 days if it is made of fiberglass filters, which are of relatively low quality. On the other hand, more expensive pleated filters can last up to three to six months. High MERV rated filters are denser, so your furnace must work harder to draw air through them. Not all furnaces have enough power to do this.
The main purpose of a furnace filter is to trap airborne contaminants, not for air quality, but to keep them out of the heating and cooling system. If anyone in your household suffers from allergies or asthma, you should change your furnace filter more often. It is important to understand the true purpose of this component of the system, how often the filter must be changed, and the problems that arise when this task is neglected. Indoor air quality equipment such as air purifiers and air filters reduce the amount of contaminants, so the furnace filter has fewer particles to capture. In homes without this equipment, the furnace filter is the only line of defense against airborne contaminants, so it fills up faster. Another advantage of changing filters is that indoor air quality is improved and money is saved on repairing the air conditioner or furnace.
The filters are designed to trap dust and particulates suspended in the air as it passes through the filter and into the furnace system. Several factors must be considered when deciding how often the filter should be changed, and many filter manufacturers provide guidelines for replacement. No two homes are the same, so despite these guidelines, you may need to change your boiler filter more often than your neighbor. When furnace filters are forgotten or neglected to be changed, several problems arise in Cincinnati homes. Clogged filters not only have a negative impact on a home's air quality, but they also force the furnace to work harder to draw air into the system, which can shorten its lifespan.
If furniture is filled with dust soon after cleaning the house, it may be a sign that your furnace filter is clogged and can no longer effectively remove dust from the air. If you find yourself in the filter replacement aisle at your favorite hardware store, you'll find that there are plenty of options to choose from: many different types of filters to influence frequency changes. Thomas heating and cooling professionals, who are NATE certified by Galbraith, explain why furnace filters need to be changed.