Question: I am so confused about what type of furnace filter I should use for optimum performance? What do you see when you view so many homes?
Answer: We recently read this in Hvac.com. There seems to be so many opinions on what kind of furnace filter should be used in your furnace. There are filters with heavy material and filters with very little material. They say one may not do the job and the other may harm your furnace and wallet. You should check with your Hvac provider.
Anyway, here's what the they wrote:
"When it comes to measuring air filter efficiency, a rating system called MERV (Minimum Efficiency Reporting Value) is used. This system rates filters on a scale from 1 to 20, with higher numbers indicating better particle removal efficiency. Filters with a higher MERV rating tend to cost more than less efficient filters.
It’s essential to note that air filters with a higher MERV rating may not be appropriate for use with your furnace. Depending on your unit, a high MERV rating can be too restrictive and may affect your HVAC system’s overall performance.
Filters with higher MERV ratings typically have denser materials designed to trap finer particles. However, this density can lead to increased resistance to airflow. If the filter restricts airflow excessively, it can strain the HVAC system, causing reduced efficiency and potentially leading to overheating.
The higher resistance to airflow caused by a high-MERV filter can force the HVAC system to work harder to maintain the desired temperature. This increased workload results in higher energy consumption, leading to elevated utility bills.
Strain on the HVAC system caused by restricted airflow can contribute to premature wear and tear on components such as the blower motor and the fan. This can cause more frequent breakdowns and a shortened overall lifespan of the system.
A filter with too high of a MERV rating may impede the flow of conditioned air into your living spaces. This can result in uneven heating or cooling and decreased comfort levels throughout your home.
To avoid these issues, it’s essential to choose an air filter with a MERV rating that aligns with the recommendations of your HVAC system’s manufacturer. Most residential HVAC systems work well with filters in the MERV 8 to MERV 13 range. Higher-rated MERV filters should only be used with systems designed to accommodate such filters."
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