Residential furnaces and air conditioners commonly use 1 to 4 merv rated filters.
Goodman furnace air filter location.
The return is apparently that white louver.
The filter you need depends on both the configuration of the furnace and the width of your furnace s cabinet.
Filter can be in one of three different places.
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Inside the furnace blower.
If it is there you will see two knobs or levers to release the grill and access the filter inside.
The higher the merv number the better the filter may be at trapping particulates.
You should be able to feel air going in there when the furnace is running.
Oftentimes you will find furnace filters are located somewhere within the duct system somewhere upstream of the air handler location.
The filter may be right behind that louver or in between that and the furnace.
Locate the filter access door which varies by unit.
Not in the furnace but in the large louvered return air grill in a hallway ceiling or side wall.
In a sheet metal slot directly next to the side of the furnace.
That is the only place it looks like it can be.
See the chart below.
This furnace filter location is common when it comes to older heating and air conditioning systems.
This means that fewer particles and airborne contaminants can pass through a high merv filter to your hvac equipment.
Standard furnace filters work well to keep your system and its duct work clean but they don t really improve indoor air quality.
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To do that you need a media filter.
The filters should be located at the side on the bottom of your goodman gks9.
Step 2 open the access door by pulling it toward you which will reveal the filter.