Furnace filters are an important component of any heating system, and they play a critical role in maintaining good indoor air quality. Furnace filters are designed to trap dirt, dust, and other airborne particles, preventing them from entering the air ducts and being circulated throughout your home or business. Replacing the furnace filter on a regular basis will help your furnace operate at its best efficiency and will help improve air quality.
Additionally, a dirty filter can cause the furnace to work harder and use more energy, which can lead to higher energy bills. As a general rule, furnace filters should be changed every 1-3 months. It's important to use the correct size and type of filter for your furnace to keep it operating well and to prevent damage to the furnace.
MERV stands for Minimum Efficiency Reporting Value, and it is a numerical value used to rate the effectiveness of air filters. The MERV rating system ranges from 1 to 20, with higher numbers indicating a higher level of air filtration. A MERV rating of 1-4 is considered low efficiency, a rating of 5-8 is considered medium efficiency, and a rating of 9-20 is considered high efficiency. Higher MERV rated filters are able to capture smaller particles such as mold spores, pet dander, and smoke, but they also create more resistance to air flow and may require a more powerful HVAC system to operate effectively. When choosing an air filter, it is important to select one with a MERV rating that is appropriate for your HVAC system and air quality needs.
Furnace filters should be changed every 3 to 6 months, depending on the usage and environment of the heating system.
The cost of installing a HEPA filter in HVAC can vary greatly depending on the size of the system and the type of filter being used. It is best to consult with one of our HVAC professionals to get an accurate estimate for your specific situation.
Cheap furnace filters may be less expensive, but they may not have the same efficiency and lifespan as more expensive filters. In general, more expensive filters have a higher MERV rating and are able to remove smaller particles from the air, making them more effective in improving indoor air quality. However, it is also important to choose a filter that is appropriate for your specific HVAC system and air quality needs.