Well the most direct answer is. The furnace or the filter air box most likely will contain the correct filter measurements for replacement filters or just check the filter.
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The arrows should always point away from the supply air and toward the blower.

Which way does the arrow go on a furnace filter. But sometimes you may not know which way the air is flowing. Heres an easy way to figure out which way the air flow arrow goes. Its a good idea to mark the direction of the airflow on your ducts with a sharpie.
The arrow should face towards your furnace and away from the air duct that supplies your unit with air. Another way of determining the correct orientation of the filter is that the arrows always point toward the furnace itself. That way the next time you replace your furnace filter you can just point the arrow on the filter.
After you have made sure that your filter is installed in the right direction you can simply look at which way the arrows are pointing on your old filter every time that you install a new filter. That arrow must always face toward the furnace and away from the return duct that carries the air in need of heating or cooling. Which way should the arrow be pointing in when I install my Honeywell air filter in the air cleaner cabinet.
Most forced air heating and cooling systems have filters in or immediately adjacent to the furnace. Does your filter not have an arrow on it. The arrow should ALWAYS point towards the return.
If you are looking at a furnace filter find the arrow that indicates the proper air flow direction. Call Jerry Kelly to take care of your furnace filters. If it does not have an arrow though youll want the side with the wire-frame to be facing outward.
These arrows are always meant to point in the direction of the airflow. The arrow on the filter should always point toward the furnace. That arrow must always face toward the furnace and away from the return duct that carries the air in need of heating or cooling.
When you install a new air filter into the AC return duct the arrows face inward to specify which way the air is flowing. The purpose of this wire mesh is to give the filter the rigidity and strength it needs to capture particles. If your filter is on the ceiling the arrow should face the ceiling.
If you are looking at a furnace filter find the arrow that indicates the proper air flow direction. The arrow should always point in the direction the air is flowing. Please comment below on what hvac info youd like to learn about in the next Video to the point.
Furnace filters have an arrow that point to installation towards the evaporator coil fan and blower motor located inside the air handler. When changing furnace filters many people wonder where the arrow of the filter should point towards. If your filter is on the wall the arrow should face the wall.
Ever wonder which way the airflow arrow should point o. If the old filter has already been removed you can use these tips as a guide when replacing furnace filter. If the filter goes inside the ductwork it should point toward the air handler or the furnace.
In case your filter doesnt have an airflow arrow there is typically a wire mesh on the downstream side of the filter. The easiest way in determining which way the furnace filter direction is to refer to the old filter before removing it and installing the new one in the same way. How Do I Install A Furnace Filter.
The arrow on a furnace air filter should point in the direction of the air flow. The point should go toward the inside of the furnace compartment. Which way does the airflow arrow point on my furnace filter - YouTube.
The arrow must always face toward the furnace and away from the return duct. For any air filter whether it be for an air conditioner or a furnace the ARROWS ALWAYS POINT IN THE DIRECTION OF AIR FLOW. First check again as nearly all filters do have it likely in the corner of one of the sides.
Likewise does it matter which way your furnace filter goes in. If youre using a filter that doesnt have an arrow but does have a mesh coating on one of its sides. Since a filter is designed to clean the air before it reaches the blower on a furnace or AC unit the arrow should point toward the system.
When installing any type of filter look at. If youre confused about which direction to install your filter please feel free give us a call at Jerry Kelly. If there are no arrows on the filter install the filter with the sturdiest side as the back.
Cleaner will always be installed on the return side of your system air handlerheat pump air handlerair conditioner furnace etc If it is not then you have a. The thinner or lighter side on unmarked filters always goes toward. In the direction of the air flow.
The arrow points in the direction of the airflow.
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