Insert Furnace Filter with Right Direction

2016-10-30


Changing a Furnace filter should be very easy. But, for some people who are not familiar with the home devices, it is very easy to make mistake. For example, inserting the furnace filter with wrong way.

You can just ask yourself if you never realized the problem: Do you know there is an Arrow indicator icon on the filter ? If you never realized it, you might insert the filer in a wrong direction.

The Arrow and Description on the Filter

Here is the photo of the side of a 3M filter, we can see the arrow and related text.

Note: The arrow always indicates the airflow direction.

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We should insert filter into the home furnace with the ARROW ON THE FRAME POINTING TOWARD THE BLOWER MOTOR. In the above photo, we see the text is Wire side toward furnace fan. All related text description have the same request: Inserting filter with right direction.

So, due to the description, we should know something: Where is the blower motor ? What is wire side of the filter ?

First let’s see the wire side of the filter, it is just a side of the filter with lots of wires. Wires can hold filter material strongly.

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How to insert the furnace filter with Right direction ?

Please check the following photo, which indicates a real case with right filter inserting way.

Blower motor is just called furnace fan also. It is put inside the major part of furnace. When the blower motor runs, the airflow is “absorbed” from air pipe which is installed beside (Normally you can see curve pipe ), the absorbed air is cold with “dirty” dust, it can be filtered by the 3M air filter, then the clean air goes into the major part of furnace and will be warmed up, then blower motor blow the warm air into each rooms in the house.

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So now you might understand how the furnace filter works. and know which direction is the right one.

We have a blog article which was about “How to choose furnace filter”, you can get other knowledge about furnace filter such as MPR.

Where we can buy the furnace filter ?

We can buy the furnace filter from local store such as Walmart, Homedepot, Lowes…etc. we can also buy from Amazon.

We bought from Amazon since the price was better than local store, if you can wait, you can also order from Amazon if you meet a great price:



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