If it does not have an arrow though, you’ll want the side with the wire-frame to be facing outward. This means the side with the wire-frame will be on the outside, or the side closest to you, and the side without it will be inside closer to the unit.
What if your air filter doesn’t have an arrow?
NOTE: In case your filter is missing an airflow arrow, there is typically a wire mesh on the downstream side of the filter. … If your air filter doesn’t have an airflow arrow, then make sure the wire mesh is facing the blower of your HVAC system since this is the last surface the air touches.
What happens if air filter is backwards?
When a furnace filter is placed backwards, the fibers can’t do their job properly. This means your furnace has to work harder to generate the same air flow, resulting in increased energy costs. Particles are also allowed to build up irregularly, making the furnace working even harder to draw air.
Does it matter which way you put an air filter in?
Slide the new filter in with the arrow pointing toward the furnace. Replacing your air filter is not difficult. Remember that air flows from your ducts, through the filter, and into the furnace. The arrow on the filter should always point toward the furnace.
Which way should my air filter face?
To properly insert a new filter, look for the arrow! The arrow on your filter should always face the unit and away from the return air duct that carries the air that will be heated or cooled. HVAC systems push the cool or warm air out and pull spent air in, recirculating the air throughout your home.
Can’t find the filter on my furnace?
Horizontal HVAC unit – Furnace filter will be located on the intake side, slid into a rack. Vertical HVAC unit with air moving upwards – You can find your furnace filter in the bottom door. This is where the blower is. You will need to open both the top and bottom doors to get to the filter.
What is the direction of air flow?
Air flows forward, and it gets pushed around by whatever is in its way. Air always flows from the high pressure region to the low pressure region. A warmer place is usually a low pressure region while a colder place is a high pressure region. Thus the direction of air is from warmer to colder region.