Which way does a furnace filter go?

Answer On most furnace filters, there are arrows drawn on the side of the furnace filter that indicate the direction of airflow. When installing the furnace filter, make sure that the arrows on the side ... Read More »

Top Q&A For: Which way does a furnace filter go

Which way should the arrow point on furnace air filter?

The arrow on a furnace air filter should point in the direction of the air flow. Since a filter is designed to clean the air before it reaches the blower on a furnace or A/C unit, the arrow should ... Read More »

What size furnace filter is used for a Honeywell furnace?

Honeywell furnace filters come in a range of sizes depending on the size of your furnace. Honeywell filter sizes are 16 inches by 20 inches, 16 inches by 25 inches, 20 inches by 20 inches, 20 inche... Read More »

What does a furnace filter do?

A furnace uses fan-generated forced air to supply heat through duct work to vents throughout a home or other building. The heated air circulates and then is returned to the furnace through return ... Read More »

What does MERV 10 stand for in a furnace filter?

Furnace filters in the United States are labeled with a Minimum Efficiency Reporting Value, MERV. The numbers refer to the filter's ability to remove particles from the air. The higher the rating, ... Read More »