High-efficiency models exceeding MERV 13 are available but may cause strain on older systems, so consulting the furnace manual is essential before upgrading. Before beginning, ensure the system is completely powered down to prevent the blower from activating during the procedure.
Maintaining Optimal Airflow: The Role of Filter Replacement in Oil Furnace Performance
For improved air quality, pleated filters offer MERV ratings between 8 and 13, trapping smaller irritants without restricting airflow. Standard fiberglass filters typically sit around MERV 4, capturing larger particles like dust and pollen.
A sudden spike in energy bills without a corresponding change in weather is a common red flag, as the system compensates for blocked airflow. A clogged filter restricts airflow, causing the furnace to work harder and longer to reach the desired temperature.
Maintaining Optimal Airflow with Proper Oil Furnace Filter Replacement
Additionally, a noticeable decrease in airflow from the vents or an increase in dust accumulation on surfaces are clear signs that the filter is no longer performing its duty. Filters are rated using the MERV (Minimum Efficiency Reporting Value) scale, which ranges from 1 to 20.
More About Oil furnace filter replacement
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